156457233199 has 16 divisors (see below), whose sum is σ = 166451040000. Its totient is φ = 146640478464.

The previous prime is 156457233197. The next prime is 156457233209. The reversal of 156457233199 is 991332754651.

It is a cyclic number.

It is not a de Polignac number, because 156457233199 - 2¹ = 156457233197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156457233193) 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, 5513004 + ... + 5541310.

It is an arithmetic number, because the mean of its divisors is an integer number (10403190000).

Almost surely, 2^156457233199 is an apocalyptic number.

156457233199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

156457233199 is a deficient number, since it is larger than the sum of its proper divisors (9993806801).

156457233199 is a wasteful number, since it uses less digits than its factorization.

156457233199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31422.

The product of its digits is 6123600, while the sum is 55.

The spelling of 156457233199 in words is "one hundred fifty-six billion, four hundred fifty-seven million, two hundred thirty-three thousand, one hundred ninety-nine".