20150456502 has 16 divisors (see below), whose sum is σ = 43964632512. Its totient is φ = 6106198920.

The previous prime is 20150456497. The next prime is 20150456503. The reversal of 20150456502 is 20565405102.

It is a self number, because there is not a number n which added to its sum of digits gives 20150456502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150456503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152654908 + ... + 152655039.

It is an arithmetic number, because the mean of its divisors is an integer number (2747789532).

Almost surely, 2^20150456502 is an apocalyptic number.

20150456502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20150456502 is an abundant number, since it is smaller than the sum of its proper divisors (23814176010).

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

20150456502 is a wasteful number, since it uses less digits than its factorization.

20150456502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305309963.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 20150456502 in words is "twenty billion, one hundred fifty million, four hundred fifty-six thousand, five hundred two".