166464701472 has 96 divisors (see below), whose sum is σ = 448614936000. Its totient is φ = 54025487360.

The previous prime is 166464701443. The next prime is 166464701503. The reversal of 166464701472 is 274107464661.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 541654 + ... + 791402.

It is an arithmetic number, because the mean of its divisors is an integer number (4673072250).

Almost surely, 2^166464701472 is an apocalyptic number.

166464701472 is a gapful number since it is divisible by the number (12) 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 166464701472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224307468000).

166464701472 is an abundant number, since it is smaller than the sum of its proper divisors (282150234528).

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

166464701472 is a wasteful number, since it uses less digits than its factorization.

166464701472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249946 (or 249938 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 166464701472 in words is "one hundred sixty-six billion, four hundred sixty-four million, seven hundred one thousand, four hundred seventy-two".