101055561057 has 12 divisors (see below), whose sum is σ = 159239066064. Its totient is φ = 61245794520.

The previous prime is 101055561007. The next prime is 101055561059. The reversal of 101055561057 is 750165550101.

It is a happy number.

It is not a de Polignac number, because 101055561057 - 2³¹ = 98908077409 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (101055561059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510381523 + ... + 510381720.

It is an arithmetic number, because the mean of its divisors is an integer number (13269922172).

Almost surely, 2^101055561057 is an apocalyptic number.

It is an amenable number.

101055561057 is a deficient number, since it is larger than the sum of its proper divisors (58183505007).

101055561057 is a wasteful number, since it uses less digits than its factorization.

101055561057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020763260 (or 1020763257 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 36.

The spelling of 101055561057 in words is "one hundred one billion, fifty-five million, five hundred sixty-one thousand, fifty-seven".