56777506165121 has 8 divisors (see below), whose sum is σ = 64888990910784. Its totient is φ = 48666124528560.

The previous prime is 56777506165091. The next prime is 56777506165129. The reversal of 56777506165121 is 12156160577765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56777506165121 - 2²² = 56777501970817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56777506165129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24593675 + ... + 26803056.

It is an arithmetic number, because the mean of its divisors is an integer number (8111123863848).

Almost surely, 2^{56777506165121} is an apocalyptic number.

It is an amenable number.

56777506165121 is a deficient number, since it is larger than the sum of its proper divisors (8111484745663).

56777506165121 is a wasteful number, since it uses less digits than its factorization.

56777506165121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51554551.

The product of its (nonzero) digits is 18522000, while the sum is 59.

The spelling of 56777506165121 in words is "fifty-six trillion, seven hundred seventy-seven billion, five hundred six million, one hundred sixty-five thousand, one hundred twenty-one".