101551615344 has 120 divisors (see below), whose sum is σ = 301791063600. Its totient is φ = 31767250944.

The previous prime is 101551615303. The next prime is 101551615351. The reversal of 101551615344 is 443516155101.

101551615344 is a `hidden beast` number, since 1 + 0 + 1 + 5 + 5 + 1 + 615 + 34 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 101551615299 and 101551615308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 789682 + ... + 909230.

It is an arithmetic number, because the mean of its divisors is an integer number (2514925530).

Almost surely, 2^101551615344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101551615344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150895531800).

101551615344 is an abundant number, since it is smaller than the sum of its proper divisors (200239448256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101551615344 is a wasteful number, since it uses less digits than its factorization.

101551615344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119927 (or 119918 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 101551615344 in words is "one hundred one billion, five hundred fifty-one million, six hundred fifteen thousand, three hundred forty-four".