20151553332 has 24 divisors (see below), whose sum is σ = 47077446976. Its totient is φ = 6709019328.

The previous prime is 20151553327. The next prime is 20151553363. The reversal of 20151553332 is 23335515102.

It is a self number, because there is not a number n which added to its sum of digits gives 20151553332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010353 + ... + 1030104.

Almost surely, 2^20151553332 is an apocalyptic number.

It is an amenable number.

20151553332 is an abundant number, since it is smaller than the sum of its proper divisors (26925893644).

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

20151553332 is a wasteful number, since it uses less digits than its factorization.

20151553332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041287 (or 2041285 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 20151553332 in words is "twenty billion, one hundred fifty-one million, five hundred fifty-three thousand, three hundred thirty-two".