161373078102 has 32 divisors (see below), whose sum is σ = 342502722432. Its totient is φ = 50512552064.

The previous prime is 161373078077. The next prime is 161373078131. The reversal of 161373078102 is 201870373161.

It is a super-2 number, since 2×161373078102² (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, 1740468 + ... + 1830839.

It is an arithmetic number, because the mean of its divisors is an integer number (10703210076).

Almost surely, 2^161373078102 is an apocalyptic number.

161373078102 is an abundant number, since it is smaller than the sum of its proper divisors (181129644330).

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

161373078102 is a wasteful number, since it uses less digits than its factorization.

161373078102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571772.

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 161373078102 in words is "one hundred sixty-one billion, three hundred seventy-three million, seventy-eight thousand, one hundred two".