153640325631 has 16 divisors (see below), whose sum is σ = 220708089056. Its totient is φ = 94506604416.

The previous prime is 153640325617. The next prime is 153640325659. The reversal of 153640325631 is 136523046351.

It is not a de Polignac number, because 153640325631 - 2¹⁴ = 153640309247 is a prime.

It is a super-2 number, since 2×153640325631² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 153640325631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153640325431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769600 + ... + 948453.

It is an arithmetic number, because the mean of its divisors is an integer number (13794255566).

Almost surely, 2^153640325631 is an apocalyptic number.

153640325631 is a deficient number, since it is larger than the sum of its proper divisors (67067763425).

153640325631 is a wasteful number, since it uses less digits than its factorization.

153640325631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720362.

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 153640325631 in words is "one hundred fifty-three billion, six hundred forty million, three hundred twenty-five thousand, six hundred thirty-one".