156629502849 has 4 divisors (see below), whose sum is σ = 208839337136. Its totient is φ = 104419668564.

The previous prime is 156629502797. The next prime is 156629502863. The reversal of 156629502849 is 948205926651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 156629502849 - 2¹⁶ = 156629437313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156629502749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26104917139 + ... + 26104917144.

It is an arithmetic number, because the mean of its divisors is an integer number (52209834284).

Almost surely, 2^156629502849 is an apocalyptic number.

It is an amenable number.

156629502849 is a deficient number, since it is larger than the sum of its proper divisors (52209834287).

156629502849 is an equidigital number, since it uses as much as digits as its factorization.

156629502849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52209834286.

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 156629502849 in words is "one hundred fifty-six billion, six hundred twenty-nine million, five hundred two thousand, eight hundred forty-nine".