157455615394 has 24 divisors (see below), whose sum is σ = 299720709648. Its totient is φ = 61346343240.

The previous prime is 157455615367. The next prime is 157455615451. The reversal of 157455615394 is 493516554751.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73030284 + ... + 73032439.

It is an arithmetic number, because the mean of its divisors is an integer number (12488362902).

Almost surely, 2^157455615394 is an apocalyptic number.

157455615394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

157455615394 is a deficient number, since it is larger than the sum of its proper divisors (142265094254).

157455615394 is a wasteful number, since it uses less digits than its factorization.

157455615394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146062750 (or 146062743 counting only the distinct ones).

The product of its digits is 11340000, while the sum is 55.

The spelling of 157455615394 in words is "one hundred fifty-seven billion, four hundred fifty-five million, six hundred fifteen thousand, three hundred ninety-four".