388089656516 has 12 divisors (see below), whose sum is σ = 679251185088. Its totient is φ = 194017889352.

The previous prime is 388089656501. The next prime is 388089656519. The reversal of 388089656516 is 615656980883.

It is a super-2 number, since 2×388089656516² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (388089656519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6702296 + ... + 6759951.

It is an arithmetic number, because the mean of its divisors is an integer number (56604265424).

Almost surely, 2^388089656516 is an apocalyptic number.

It is an amenable number.

388089656516 is a deficient number, since it is larger than the sum of its proper divisors (291161528572).

388089656516 is a wasteful number, since it uses less digits than its factorization.

388089656516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13469458 (or 13469456 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 65.

The spelling of 388089656516 in words is "three hundred eighty-eight billion, eighty-nine million, six hundred fifty-six thousand, five hundred sixteen".