20015542452 has 24 divisors (see below), whose sum is σ = 46871542816. Its totient is φ = 6647760288.

The previous prime is 20015542441. The next prime is 20015542453. The reversal of 20015542452 is 25424551002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20015542453) 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, 3007438 + ... + 3014085.

Almost surely, 2^20015542452 is an apocalyptic number.

It is an amenable number.

20015542452 is an abundant number, since it is smaller than the sum of its proper divisors (26856000364).

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

20015542452 is a wasteful number, since it uses less digits than its factorization.

20015542452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021807 (or 6021805 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 20015542452 in words is "twenty billion, fifteen million, five hundred forty-two thousand, four hundred fifty-two".