56770776701556 has 48 divisors (see below), whose sum is σ = 133600918389120. Its totient is φ = 18761921584000.

The previous prime is 56770776701519. The next prime is 56770776701579. The reversal of 56770776701556 is 65510767707765.

It is a super-2 number, since 2×56770776701556² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35632695 + ... + 37191806.

It is an arithmetic number, because the mean of its divisors is an integer number (2783352466440).

Almost surely, 2^{56770776701556} is an apocalyptic number.

It is an amenable number.

56770776701556 is an abundant number, since it is smaller than the sum of its proper divisors (76830141687564).

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

56770776701556 is a wasteful number, since it uses less digits than its factorization.

56770776701556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72825064 (or 72825062 counting only the distinct ones).

The product of its (nonzero) digits is 453789000, while the sum is 69.

The spelling of 56770776701556 in words is "fifty-six trillion, seven hundred seventy billion, seven hundred seventy-six million, seven hundred one thousand, five hundred fifty-six".