72154003158 has 24 divisors (see below), whose sum is σ = 159283367568. Its totient is φ = 23597535312.

The previous prime is 72154003153. The next prime is 72154003169. The reversal of 72154003158 is 85130045127.

72154003158 is a `hidden beast` number, since 7 + 215 + 400 + 31 + 5 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72154003153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37815610 + ... + 37817517.

It is an arithmetic number, because the mean of its divisors is an integer number (6636806982).

Almost surely, 2^72154003158 is an apocalyptic number.

72154003158 is an abundant number, since it is smaller than the sum of its proper divisors (87129364410).

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

72154003158 is a wasteful number, since it uses less digits than its factorization.

72154003158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75633188 (or 75633185 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 72154003158 in words is "seventy-two billion, one hundred fifty-four million, three thousand, one hundred fifty-eight".