61165021776152 has 32 divisors (see below), whose sum is σ = 131076170284800. Its totient is φ = 26211927465504.

The previous prime is 61165021776101. The next prime is 61165021776163. The reversal of 61165021776152 is 25167712056116.

It is a self number, because there is not a number n which added to its sum of digits gives 61165021776152.

It is a congruent 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, 33547628 + ... + 35323835.

It is an arithmetic number, because the mean of its divisors is an integer number (4096130321400).

Almost surely, 2^{61165021776152} is an apocalyptic number.

It is an amenable number.

61165021776152 is an abundant number, since it is smaller than the sum of its proper divisors (69911148508648).

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

61165021776152 is a wasteful number, since it uses less digits than its factorization.

61165021776152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68887335 (or 68887331 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 61165021776152 in words is "sixty-one trillion, one hundred sixty-five billion, twenty-one million, seven hundred seventy-six thousand, one hundred fifty-two".