156053636644 has 24 divisors (see below), whose sum is σ = 273490104888. Its totient is φ = 77913692160.

The previous prime is 156053636639. The next prime is 156053636729. The reversal of 156053636644 is 446636350651.

It can be written as a sum of positive squares in 4 ways, for example, as 5596536100 + 150457100544 = 74810^2 + 387888^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8465982 + ... + 8484394.

It is an arithmetic number, because the mean of its divisors is an integer number (11395421037).

Almost surely, 2^156053636644 is an apocalyptic number.

It is an amenable number.

156053636644 is a deficient number, since it is larger than the sum of its proper divisors (117436468244).

156053636644 is a wasteful number, since it uses less digits than its factorization.

156053636644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21375 (or 21373 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 156053636644 in words is "one hundred fifty-six billion, fifty-three million, six hundred thirty-six thousand, six hundred forty-four".