166990893315 has 32 divisors (see below), whose sum is σ = 282053856000. Its totient is φ = 84132535680.

The previous prime is 166990893313. The next prime is 166990893317. The reversal of 166990893315 is 513398099661.

It is an interprime number because it is at equal distance from previous prime (166990893313) and next prime (166990893317).

It is not a de Polignac number, because 166990893315 - 2¹ = 166990893313 is a prime.

It is a super-3 number, since 3×166990893315³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (166990893313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739981 + ... + 938910.

It is an arithmetic number, because the mean of its divisors is an integer number (8814183000).

Almost surely, 2^166990893315 is an apocalyptic number.

166990893315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166990893315 is a deficient number, since it is larger than the sum of its proper divisors (115062962685).

166990893315 is a wasteful number, since it uses less digits than its factorization.

166990893315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679267.

The product of its (nonzero) digits is 9447840, while the sum is 60.

The spelling of 166990893315 in words is "one hundred sixty-six billion, nine hundred ninety million, eight hundred ninety-three thousand, three hundred fifteen".