166740498 has 32 divisors (see below), whose sum is σ = 379156800. Its totient is φ = 54286848.

The previous prime is 166740479. The next prime is 166740499. The reversal of 166740498 is 894047661.

It is not an unprimeable number, because it can be changed into a prime (166740499) 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, 33583 + ... + 38226.

It is an arithmetic number, because the mean of its divisors is an integer number (11848650).

Almost surely, 2^166740498 is an apocalyptic number.

166740498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

166740498 is an abundant number, since it is smaller than the sum of its proper divisors (212416302).

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

166740498 is a wasteful number, since it uses less digits than its factorization.

166740498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71863 (or 71857 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 166740498 is about 12912.8036459942. The cubic root of 166740498 is about 550.4024580498.

The spelling of 166740498 in words is "one hundred sixty-six million, seven hundred forty thousand, four hundred ninety-eight".