161139098362 has 16 divisors (see below), whose sum is σ = 263688631200. Its totient is φ = 73243247440.

The previous prime is 161139098359. The next prime is 161139098383. The reversal of 161139098362 is 263890931161.

It is a super-2 number, since 2×161139098362² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1315464 + ... + 1432732.

It is an arithmetic number, because the mean of its divisors is an integer number (16480539450).

Almost surely, 2^161139098362 is an apocalyptic number.

161139098362 is a deficient number, since it is larger than the sum of its proper divisors (102549532838).

161139098362 is a wasteful number, since it uses less digits than its factorization.

161139098362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179741.

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 161139098362 in words is "one hundred sixty-one billion, one hundred thirty-nine million, ninety-eight thousand, three hundred sixty-two".