616669652166 has 32 divisors (see below), whose sum is σ = 1239300399840. Its totient is φ = 204565181184.

The previous prime is 616669652107. The next prime is 616669652171. The reversal of 616669652166 is 661256966616.

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, 883380 + ... + 1419048.

It is an arithmetic number, because the mean of its divisors is an integer number (38728137495).

Almost surely, 2^616669652166 is an apocalyptic number.

616669652166 is an abundant number, since it is smaller than the sum of its proper divisors (622630747674).

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

616669652166 is a wasteful number, since it uses less digits than its factorization.

616669652166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536600.

The product of its digits is 25194240, while the sum is 60.

The spelling of 616669652166 in words is "six hundred sixteen billion, six hundred sixty-nine million, six hundred fifty-two thousand, one hundred sixty-six".