101620440155751 has 32 divisors (see below), whose sum is σ = 152910181209600. Its totient is φ = 59463762314880.

The previous prime is 101620440155749. The next prime is 101620440155783. The reversal of 101620440155751 is 157551044026101.

It is not a de Polignac number, because 101620440155751 - 2¹ = 101620440155749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101620440155791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94559905 + ... + 95628533.

It is an arithmetic number, because the mean of its divisors is an integer number (4778443162800).

Almost surely, 2^{101620440155751} is an apocalyptic number.

101620440155751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101620440155751 is a deficient number, since it is larger than the sum of its proper divisors (51289741053849).

101620440155751 is a wasteful number, since it uses less digits than its factorization.

101620440155751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168039.

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 101620440155751 in words is "one hundred one trillion, six hundred twenty billion, four hundred forty million, one hundred fifty-five thousand, seven hundred fifty-one".