166658266152 has 64 divisors (see below), whose sum is σ = 529073865600. Its totient is φ = 47616647040.

The previous prime is 166658266141. The next prime is 166658266163. The reversal of 166658266152 is 251662856661.

It is an interprime number because it is at equal distance from previous prime (166658266141) and next prime (166658266163).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55110349 + ... + 55113372.

It is an arithmetic number, because the mean of its divisors is an integer number (8266779150).

Almost surely, 2^166658266152 is an apocalyptic number.

166658266152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166658266152 is an abundant number, since it is smaller than the sum of its proper divisors (362415599448).

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

166658266152 is a wasteful number, since it uses less digits than its factorization.

166658266152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110223743 (or 110223733 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 166658266152 in words is "one hundred sixty-six billion, six hundred fifty-eight million, two hundred sixty-six thousand, one hundred fifty-two".