166113651 has 16 divisors (see below), whose sum is σ = 246763008. Its totient is φ = 98532000.

The previous prime is 166113643. The next prime is 166113667. The reversal of 166113651 is 156311661.

It is not a de Polignac number, because 166113651 - 2³ = 166113643 is a prime.

It is a super-3 number, since 3×166113651³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (166113641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52000 + ... + 55101.

It is an arithmetic number, because the mean of its divisors is an integer number (15422688).

Almost surely, 2^166113651 is an apocalyptic number.

166113651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

166113651 is a deficient number, since it is larger than the sum of its proper divisors (80649357).

166113651 is a wasteful number, since it uses less digits than its factorization.

166113651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107162.

The product of its digits is 3240, while the sum is 30.

The square root of 166113651 is about 12888.5084862446. The cubic root of 166113651 is about 549.7118611949.

The spelling of 166113651 in words is "one hundred sixty-six million, one hundred thirteen thousand, six hundred fifty-one".