61133664210 has 64 divisors (see below), whose sum is σ = 147436070400. Its totient is φ = 16222932992.

The previous prime is 61133664209. The next prime is 61133664287. The reversal of 61133664210 is 1246633116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19049086 + ... + 19052294.

It is an arithmetic number, because the mean of its divisors is an integer number (2303688600).

Almost surely, 2^61133664210 is an apocalyptic number.

61133664210 is an abundant number, since it is smaller than the sum of its proper divisors (86302406190).

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

61133664210 is a wasteful number, since it uses less digits than its factorization.

61133664210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 61133664210 in words is "sixty-one billion, one hundred thirty-three million, six hundred sixty-four thousand, two hundred ten".