157497420399 has 16 divisors (see below), whose sum is σ = 236986715520. Its totient is φ = 92161499360.

The previous prime is 157497420391. The next prime is 157497420427. The reversal of 157497420399 is 993024794751.

It is a cyclic number.

It is not a de Polignac number, because 157497420399 - 2³ = 157497420391 is a prime.

It is a super-3 number, since 3×157497420399³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157497420391) 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, 82286097 + ... + 82288010.

It is an arithmetic number, because the mean of its divisors is an integer number (14811669720).

Almost surely, 2^157497420399 is an apocalyptic number.

157497420399 is a deficient number, since it is larger than the sum of its proper divisors (79489295121).

157497420399 is a wasteful number, since it uses less digits than its factorization.

157497420399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164574150.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 157497420399 in words is "one hundred fifty-seven billion, four hundred ninety-seven million, four hundred twenty thousand, three hundred ninety-nine".