2151156466032 has 120 divisors (see below), whose sum is σ = 6466724420112. Its totient is φ = 614399385600.

The previous prime is 2151156466027. The next prime is 2151156466051. The reversal of 2151156466032 is 2306646511512.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 6569232 + ... + 6888912.

Almost surely, 2^{2151156466032} 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 2151156466032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3233362210056).

2151156466032 is an abundant number, since it is smaller than the sum of its proper divisors (4315567954080).

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

2151156466032 is a wasteful number, since it uses less digits than its factorization.

2151156466032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322567 (or 322554 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 2151156466032 in words is "two trillion, one hundred fifty-one billion, one hundred fifty-six million, four hundred sixty-six thousand, thirty-two".