169889360690 has 96 divisors (see below), whose sum is σ = 357594652800. Its totient is φ = 57942984960.

The previous prime is 169889360659. The next prime is 169889360731. The reversal of 169889360690 is 96063988961.

It is a super-2 number, since 2×169889360690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87979025 + ... + 87980955.

It is an arithmetic number, because the mean of its divisors is an integer number (3724944300).

Almost surely, 2^169889360690 is an apocalyptic number.

169889360690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

169889360690 is an abundant number, since it is smaller than the sum of its proper divisors (187705292110).

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

169889360690 is a wasteful number, since it uses less digits than its factorization.

169889360690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 65.

The spelling of 169889360690 in words is "one hundred sixty-nine billion, eight hundred eighty-nine million, three hundred sixty thousand, six hundred ninety".