157721430102 has 32 divisors (see below), whose sum is σ = 324654341760. Its totient is φ = 51060035520.

The previous prime is 157721430089. The next prime is 157721430127. The reversal of 157721430102 is 201034127751.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2654599 + ... + 2713362.

It is an arithmetic number, because the mean of its divisors is an integer number (10145448180).

Almost surely, 2^157721430102 is an apocalyptic number.

157721430102 is an abundant number, since it is smaller than the sum of its proper divisors (166932911658).

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

157721430102 is a wasteful number, since it uses less digits than its factorization.

157721430102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368108.

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 157721430102 its reverse (201034127751), we get a palindrome (358755557853).

The spelling of 157721430102 in words is "one hundred fifty-seven billion, seven hundred twenty-one million, four hundred thirty thousand, one hundred two".