385161433456856 has 64 divisors (see below), whose sum is σ = 853346358528000. Its totient is φ = 159486304423680.

The previous prime is 385161433456847. The next prime is 385161433456901. The reversal of 385161433456856 is 658654334161583.

It is a super-2 number, since 2×385161433456856² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 178139621 + ... + 180288788.

It is an arithmetic number, because the mean of its divisors is an integer number (13333536852000).

Almost surely, 2^{385161433456856} is an apocalyptic number.

It is an amenable number.

385161433456856 is an abundant number, since it is smaller than the sum of its proper divisors (468184925071144).

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

385161433456856 is a wasteful number, since it uses less digits than its factorization.

385161433456856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358429072 (or 358429068 counting only the distinct ones).

The product of its digits is 746496000, while the sum is 68.

The spelling of 385161433456856 in words is "three hundred eighty-five trillion, one hundred sixty-one billion, four hundred thirty-three million, four hundred fifty-six thousand, eight hundred fifty-six".