20152155043 has 6 divisors (see below), whose sum is σ = 20711529636. Its totient is φ = 19607500872.

The previous prime is 20152155031. The next prime is 20152155047. The reversal of 20152155043 is 34055125102.

It is not a de Polignac number, because 20152155043 - 2²⁵ = 20118600611 is a prime.

It is a super-2 number, since 2×20152155043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20152155047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7358805 + ... + 7361542.

It is an arithmetic number, because the mean of its divisors is an integer number (3451921606).

Almost surely, 2^20152155043 is an apocalyptic number.

20152155043 is a deficient number, since it is larger than the sum of its proper divisors (559374593).

20152155043 is an equidigital number, since it uses as much as digits as its factorization.

20152155043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14720421 (or 14720384 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 20152155043 in words is "twenty billion, one hundred fifty-two million, one hundred fifty-five thousand, forty-three".