61466690 has 16 divisors (see below), whose sum is σ = 111075192. Its totient is φ = 24489984.

The previous prime is 61466687. The next prime is 61466701. The reversal of 61466690 is 9666416.

It can be written as a sum of positive squares in 4 ways, for example, as 61105489 + 361201 = 7817^2 + 601^2 .

It is a super-2 number, since 2×61466690² = 7556307959112200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9389 + ... + 14528.

Almost surely, 2^61466690 is an apocalyptic number.

61466690 is a deficient number, since it is larger than the sum of its proper divisors (49608502).

61466690 is a wasteful number, since it uses less digits than its factorization.

61466690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24181.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 61466690 is about 7840.0695149979. The cubic root of 61466690 is about 394.6510618158.

The spelling of 61466690 in words is "sixty-one million, four hundred sixty-six thousand, six hundred ninety".