157351072721244 has 48 divisors (see below), whose sum is σ = 379002324965376. Its totient is φ = 50757581160000.

The previous prime is 157351072721243. The next prime is 157351072721251. The reversal of 157351072721244 is 442127270153751.

157351072721244 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157351072721243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19546434 + ... + 26396310.

It is an arithmetic number, because the mean of its divisors is an integer number (7895881770112).

Almost surely, 2^{157351072721244} is an apocalyptic number.

It is an amenable number.

157351072721244 is an abundant number, since it is smaller than the sum of its proper divisors (221651252244132).

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

157351072721244 is a wasteful number, since it uses less digits than its factorization.

157351072721244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911666 (or 6911664 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 157351072721244 in words is "one hundred fifty-seven trillion, three hundred fifty-one billion, seventy-two million, seven hundred twenty-one thousand, two hundred forty-four".