161615677102 has 32 divisors (see below), whose sum is σ = 265081501440. Its totient is φ = 73289810880.

The previous prime is 161615677081. The next prime is 161615677121. The reversal of 161615677102 is 201776516161.

It is a happy number.

It is a super-2 number, since 2×161615677102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17702863 + ... + 17711989.

It is an arithmetic number, because the mean of its divisors is an integer number (8283796920).

Almost surely, 2^161615677102 is an apocalyptic number.

161615677102 is a deficient number, since it is larger than the sum of its proper divisors (103465824338).

161615677102 is a wasteful number, since it uses less digits than its factorization.

161615677102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10936.

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 161615677102 in words is "one hundred sixty-one billion, six hundred fifteen million, six hundred seventy-seven thousand, one hundred two".