156621364142 has 4 divisors (see below), whose sum is σ = 234932046216. Its totient is φ = 78310682070.

The previous prime is 156621364093. The next prime is 156621364171. The reversal of 156621364142 is 241463126651.

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

It is a self number, because there is not a number n which added to its sum of digits gives 156621364142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39155341034 + ... + 39155341037.

It is an arithmetic number, because the mean of its divisors is an integer number (58733011554).

Almost surely, 2^156621364142 is an apocalyptic number.

156621364142 is a deficient number, since it is larger than the sum of its proper divisors (78310682074).

156621364142 is an equidigital number, since it uses as much as digits as its factorization.

156621364142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78310682073.

The product of its digits is 207360, while the sum is 41.

The spelling of 156621364142 in words is "one hundred fifty-six billion, six hundred twenty-one million, three hundred sixty-four thousand, one hundred forty-two".