56705627135545 has 16 divisors (see below), whose sum is σ = 69180508695312. Its totient is φ = 44609056450560.

The previous prime is 56705627135543. The next prime is 56705627135561. The reversal of 56705627135545 is 54553172650765.

It can be written as a sum of positive squares in 8 ways, for example, as 7669598515216 + 49036028620329 = 2769404^2 + 7002573^2 .

It is not a de Polignac number, because 56705627135545 - 2¹ = 56705627135543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56705627135543) 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, 23351452 + ... + 25665181.

It is an arithmetic number, because the mean of its divisors is an integer number (4323781793457).

Almost surely, 2^{56705627135545} is an apocalyptic number.

It is an amenable number.

56705627135545 is a deficient number, since it is larger than the sum of its proper divisors (12474881559767).

56705627135545 is a wasteful number, since it uses less digits than its factorization.

56705627135545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49020492.

The product of its (nonzero) digits is 132300000, while the sum is 61.

The spelling of 56705627135545 in words is "fifty-six trillion, seven hundred five billion, six hundred twenty-seven million, one hundred thirty-five thousand, five hundred forty-five".