61055745057 has 16 divisors (see below), whose sum is σ = 90457576000. Its totient is φ = 40701750912.

The previous prime is 61055745043. The next prime is 61055745071. The reversal of 61055745057 is 75054755016.

61055745057 is a `hidden beast` number, since 6 + 1 + 0 + 557 + 45 + 0 + 57 = 666.

61055745057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61055745043) and next prime (61055745071).

It is not a de Polignac number, because 61055745057 - 2¹⁶ = 61055679521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61055741057) 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, 629169 + ... + 719697.

It is an arithmetic number, because the mean of its divisors is an integer number (5653598500).

Almost surely, 2^61055745057 is an apocalyptic number.

It is an amenable number.

61055745057 is a deficient number, since it is larger than the sum of its proper divisors (29401830943).

61055745057 is a wasteful number, since it uses less digits than its factorization.

61055745057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115517 (or 115511 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 45.

The spelling of 61055745057 in words is "sixty-one billion, fifty-five million, seven hundred forty-five thousand, fifty-seven".