156541323640 has 64 divisors (see below), whose sum is σ = 386468560800. Its totient is φ = 56709299712.

The previous prime is 156541323629. The next prime is 156541323643. The reversal of 156541323640 is 46323145651.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 156541323593 and 156541323602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156541323643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2812450 + ... + 2867569.

Almost surely, 2^156541323640 is an apocalyptic number.

156541323640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156541323640 is an abundant number, since it is smaller than the sum of its proper divisors (229927237160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156541323640 is a wasteful number, since it uses less digits than its factorization.

156541323640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680096 (or 5680092 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 156541323640 in words is "one hundred fifty-six billion, five hundred forty-one million, three hundred twenty-three thousand, six hundred forty".