61266330 has 48 divisors (see below), whose sum is σ = 160224480. Its totient is φ = 16242144.

The previous prime is 61266313. The next prime is 61266347. The reversal of 61266330 is 3366216.

61266330 is a `hidden beast` number, since 6 + 1 + 26 + 633 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (61266313) and next prime (61266347).

It is a junction number, because it is equal to n+sod(n) for n = 61266294 and 61266303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14209 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (3338010).

Almost surely, 2^61266330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61266330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80112240).

61266330 is an abundant number, since it is smaller than the sum of its proper divisors (98958150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61266330 is a wasteful number, since it uses less digits than its factorization.

61266330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995 (or 3992 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 61266330 is about 7827.2811371510. The cubic root of 61266330 is about 394.2217867146.

The spelling of 61266330 in words is "sixty-one million, two hundred sixty-six thousand, three hundred thirty".