157171202894734 has 16 divisors (see below), whose sum is σ = 269460147786336. Its totient is φ = 67353136963200.

The previous prime is 157171202894731. The next prime is 157171202894777. The reversal of 157171202894734 is 437498202171751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157171202894731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495668487 + ... + 495985474.

It is an arithmetic number, because the mean of its divisors is an integer number (16841259236646).

Almost surely, 2^{157171202894734} is an apocalyptic number.

157171202894734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

157171202894734 is a deficient number, since it is larger than the sum of its proper divisors (112288944891602).

157171202894734 is a wasteful number, since it uses less digits than its factorization.

157171202894734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991665291.

The product of its (nonzero) digits is 23708160, while the sum is 61.

The spelling of 157171202894734 in words is "one hundred fifty-seven trillion, one hundred seventy-one billion, two hundred two million, eight hundred ninety-four thousand, seven hundred thirty-four".