161702601402 has 16 divisors (see below), whose sum is σ = 330926254560. Its totient is φ = 52647358512.

The previous prime is 161702601299. The next prime is 161702601433. The reversal of 161702601402 is 204106207161.

It is a super-2 number, since 2×161702601402² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161702601402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313376877 + ... + 313377392.

It is an arithmetic number, because the mean of its divisors is an integer number (20682890910).

Almost surely, 2^161702601402 is an apocalyptic number.

161702601402 is an abundant number, since it is smaller than the sum of its proper divisors (169223653158).

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

161702601402 is a wasteful number, since it uses less digits than its factorization.

161702601402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626754317.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 161702601402 its reverse (204106207161), we get a palindrome (365808808563).

The spelling of 161702601402 in words is "one hundred sixty-one billion, seven hundred two million, six hundred one thousand, four hundred two".