61466881 has 16 divisors (see below), whose sum is σ = 74188800. Its totient is φ = 49748688.

The previous prime is 61466869. The next prime is 61466891. The reversal of 61466881 is 18866416.

It is not a de Polignac number, because 61466881 - 2¹⁹ = 60942593 is a prime.

It is a super-2 number, since 2×61466881² = 7556354919736322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61466851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55176 + ... + 56278.

It is an arithmetic number, because the mean of its divisors is an integer number (4636800).

Almost surely, 2^61466881 is an apocalyptic number.

It is an amenable number.

61466881 is a deficient number, since it is larger than the sum of its proper divisors (12721919).

61466881 is a wasteful number, since it uses less digits than its factorization.

61466881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548.

The product of its digits is 55296, while the sum is 40.

The square root of 61466881 is about 7840.0816960029. The cubic root of 61466881 is about 394.6514705915.

The spelling of 61466881 in words is "sixty-one million, four hundred sixty-six thousand, eight hundred eighty-one".