157640262472 has 128 divisors (see below), whose sum is σ = 391226112000. Its totient is φ = 57651471360.

The previous prime is 157640262469. The next prime is 157640262473. The reversal of 157640262472 is 274262046751.

It is not an unprimeable number, because it can be changed into a prime (157640262473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3949029 + ... + 3988747.

It is an arithmetic number, because the mean of its divisors is an integer number (3056454000).

Almost surely, 2^157640262472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157640262472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195613056000).

157640262472 is an abundant number, since it is smaller than the sum of its proper divisors (233585849528).

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

157640262472 is a wasteful number, since it uses less digits than its factorization.

157640262472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40139 (or 40135 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 157640262472 in words is "one hundred fifty-seven billion, six hundred forty million, two hundred sixty-two thousand, four hundred seventy-two".