166046140 has 48 divisors (see below), whose sum is σ = 397619712. Its totient is φ = 57701376.

The previous prime is 166046129. The next prime is 166046147. The reversal of 166046140 is 41640661.

It is a junction number, because it is equal to n+sod(n) for n = 166046099 and 166046108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166046147) 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, 14364 + ... + 23203.

It is an arithmetic number, because the mean of its divisors is an integer number (8283744).

Almost surely, 2^166046140 is an apocalyptic number.

166046140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166046140 is an abundant number, since it is smaller than the sum of its proper divisors (231573572).

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

166046140 is a wasteful number, since it uses less digits than its factorization.

166046140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37606 (or 37604 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 166046140 is about 12885.8891815815. The cubic root of 166046140 is about 549.6373808097.

The spelling of 166046140 in words is "one hundred sixty-six million, forty-six thousand, one hundred forty".