157498654690 has 32 divisors (see below), whose sum is σ = 311065571376. Its totient is φ = 57056113920.

The previous prime is 157498654667. The next prime is 157498654741. The reversal of 157498654690 is 96456894751.

It can be written as a sum of positive squares in 8 ways, for example, as 56685419569 + 100813235121 = 238087^2 + 317511^2 .

It is a super-2 number, since 2×157498654690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11422621 + ... + 11436400.

Almost surely, 2^157498654690 is an apocalyptic number.

157498654690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157498654690 is a deficient number, since it is larger than the sum of its proper divisors (153566916686).

157498654690 is a wasteful number, since it uses less digits than its factorization.

157498654690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22859094.

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 157498654690 in words is "one hundred fifty-seven billion, four hundred ninety-eight million, six hundred fifty-four thousand, six hundred ninety".