172601801456 has 60 divisors (see below), whose sum is σ = 389570702040. Its totient is φ = 73866441600.

The previous prime is 172601801443. The next prime is 172601801501. The reversal of 172601801456 is 654108106271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392555 + ... + 706613.

It is an arithmetic number, because the mean of its divisors is an integer number (6492845034).

Almost surely, 2^172601801456 is an apocalyptic number.

172601801456 is a gapful number since it is divisible by the number (16) 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 172601801456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194785351020).

172601801456 is an abundant number, since it is smaller than the sum of its proper divisors (216968900584).

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

172601801456 is a wasteful number, since it uses less digits than its factorization.

172601801456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314782 (or 314769 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 172601801456 in words is "one hundred seventy-two billion, six hundred one million, eight hundred one thousand, four hundred fifty-six".