616857444670 has 32 divisors (see below), whose sum is σ = 1117528936416. Its totient is φ = 245146512000.

The previous prime is 616857444661. The next prime is 616857444703. The reversal of 616857444670 is 76444758616.

It is a super-2 number, since 2×616857444670² (a number of 24 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, 28219245 + ... + 28241095.

It is an arithmetic number, because the mean of its divisors is an integer number (34922779263).

Almost surely, 2^616857444670 is an apocalyptic number.

616857444670 is a deficient number, since it is larger than the sum of its proper divisors (500671491746).

616857444670 is a wasteful number, since it uses less digits than its factorization.

616857444670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39996.

The product of its (nonzero) digits is 27095040, while the sum is 58.

The spelling of 616857444670 in words is "six hundred sixteen billion, eight hundred fifty-seven million, four hundred forty-four thousand, six hundred seventy".