166416526331 has 8 divisors (see below), whose sum is σ = 181635601728. Its totient is φ = 151212501000.

The previous prime is 166416526321. The next prime is 166416526343. The reversal of 166416526331 is 133625614661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-166416526331 is a prime.

It is a super-2 number, since 2×166416526331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166416526301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3739385 + ... + 3783626.

It is an arithmetic number, because the mean of its divisors is an integer number (22704450216).

Almost surely, 2^166416526331 is an apocalyptic number.

166416526331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

166416526331 is a deficient number, since it is larger than the sum of its proper divisors (15219075397).

166416526331 is a wasteful number, since it uses less digits than its factorization.

166416526331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7525033.

The product of its digits is 466560, while the sum is 44.

The spelling of 166416526331 in words is "one hundred sixty-six billion, four hundred sixteen million, five hundred twenty-six thousand, three hundred thirty-one".