156312566403253 has 4 divisors (see below), whose sum is σ = 168336609972748. Its totient is φ = 144288522833760.

The previous prime is 156312566403239. The next prime is 156312566403277. The reversal of 156312566403253 is 352304665213651.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15886226977009 + 140426339426244 = 3985753^2 + 11850162^2 .

It is a cyclic number.

It is not a de Polignac number, because 156312566403253 - 2²⁵ = 156312532848821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156312566403253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156312566400253) 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, 6012021784728 + ... + 6012021784753.

It is an arithmetic number, because the mean of its divisors is an integer number (42084152493187).

Almost surely, 2^{156312566403253} is an apocalyptic number.

156312566403253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

156312566403253 is a deficient number, since it is larger than the sum of its proper divisors (12024043569495).

156312566403253 is a wasteful number, since it uses less digits than its factorization.

156312566403253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12024043569494.

The product of its (nonzero) digits is 11664000, while the sum is 52.

The spelling of 156312566403253 in words is "one hundred fifty-six trillion, three hundred twelve billion, five hundred sixty-six million, four hundred three thousand, two hundred fifty-three".