156821366154860 has 48 divisors (see below), whose sum is σ = 361885854708000. Its totient is φ = 56609703498240.

The previous prime is 156821366154841. The next prime is 156821366154883. The reversal of 156821366154860 is 68451663128651.

It is a junction number, because it is equal to n+sod(n) for n = 156821366154793 and 156821366154802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2601518735 + ... + 2601579014.

It is an arithmetic number, because the mean of its divisors is an integer number (7539288639750).

Almost surely, 2^{156821366154860} is an apocalyptic number.

156821366154860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156821366154860 is an abundant number, since it is smaller than the sum of its proper divisors (205064488553140).

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

156821366154860 is a wasteful number, since it uses less digits than its factorization.

156821366154860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203097906 (or 5203097904 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 62.

The spelling of 156821366154860 in words is "one hundred fifty-six trillion, eight hundred twenty-one billion, three hundred sixty-six million, one hundred fifty-four thousand, eight hundred sixty".