157240613511 has 12 divisors (see below), whose sum is σ = 230236637488. Its totient is φ = 103391087904.

The previous prime is 157240613489. The next prime is 157240613513. The reversal of 157240613511 is 115316042751.

157240613511 is a `hidden beast` number, since 1 + 5 + 7 + 24 + 0 + 613 + 5 + 11 = 666.

It is not a de Polignac number, because 157240613511 - 2⁹ = 157240612999 is a prime.

It is a super-2 number, since 2×157240613511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157240613513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119664955 + ... + 119666268.

Almost surely, 2^157240613511 is an apocalyptic number.

157240613511 is a deficient number, since it is larger than the sum of its proper divisors (72996023977).

157240613511 is a wasteful number, since it uses less digits than its factorization.

157240613511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239331302 (or 239331299 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 157240613511 in words is "one hundred fifty-seven billion, two hundred forty million, six hundred thirteen thousand, five hundred eleven".