61765943955956 has 48 divisors (see below), whose sum is σ = 112849306569216. Its totient is φ = 29524701739104.

The previous prime is 61765943955953. The next prime is 61765943955971. The reversal of 61765943955956 is 65955934956716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61765943955953) 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, 1483774415 + ... + 1483816041.

It is an arithmetic number, because the mean of its divisors is an integer number (2351027220192).

Almost surely, 2^{61765943955956} is an apocalyptic number.

It is an amenable number.

61765943955956 is a deficient number, since it is larger than the sum of its proper divisors (51083362613260).

61765943955956 is a wasteful number, since it uses less digits than its factorization.

61765943955956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49748 (or 49746 counting only the distinct ones).

The product of its digits is 8266860000, while the sum is 80.

The spelling of 61765943955956 in words is "sixty-one trillion, seven hundred sixty-five billion, nine hundred forty-three million, nine hundred fifty-five thousand, nine hundred fifty-six".