166474526400 has 2688 divisors, whose sum is σ = 822907330560. Its totient is φ = 31744327680.

The previous prime is 166474526399. The next prime is 166474526411. The reversal of 166474526400 is 4625474661.

166474526400 is a `hidden beast` number, since 16 + 6 + 4 + 74 + 526 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 3141028774 + ... + 3141028826.

It is an arithmetic number, because the mean of its divisors is an integer number (306141120).

Almost surely, 2^166474526400 is an apocalyptic number.

166474526400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166474526400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411453665280).

166474526400 is an abundant number, since it is smaller than the sum of its proper divisors (656432804160).

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

166474526400 is a wasteful number, since it uses less digits than its factorization.

166474526400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 166474526400 in words is "one hundred sixty-six billion, four hundred seventy-four million, five hundred twenty-six thousand, four hundred".