20272349154 has 16 divisors (see below), whose sum is σ = 40546504800. Its totient is φ = 6757148640.

The previous prime is 20272349137. The next prime is 20272349177. The reversal of 20272349154 is 45194327202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103149 + ... + 226239.

It is an arithmetic number, because the mean of its divisors is an integer number (2534156550).

Almost surely, 2^20272349154 is an apocalyptic number.

20272349154 is an abundant number, since it is smaller than the sum of its proper divisors (20274155646).

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

20272349154 is a wasteful number, since it uses less digits than its factorization.

20272349154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150545.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 20272349154 in words is "twenty billion, two hundred seventy-two million, three hundred forty-nine thousand, one hundred fifty-four".