157828220175 has 48 divisors (see below), whose sum is σ = 267090405120. Its totient is φ = 82193072640.

The previous prime is 157828220171. The next prime is 157828220183. The reversal of 157828220175 is 571022828751.

It is a Cunningham number, because it is equal to 397276²-1.

It is not a de Polignac number, because 157828220175 - 2² = 157828220171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157828220171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17078206 + ... + 17087444.

It is an arithmetic number, because the mean of its divisors is an integer number (5564383440).

Almost surely, 2^157828220175 is an apocalyptic number.

157828220175 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157828220175 is a deficient number, since it is larger than the sum of its proper divisors (109262184945).

157828220175 is a wasteful number, since it uses less digits than its factorization.

157828220175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14592 (or 14587 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 48.

The spelling of 157828220175 in words is "one hundred fifty-seven billion, eight hundred twenty-eight million, two hundred twenty thousand, one hundred seventy-five".