172466091630 has 96 divisors (see below), whose sum is σ = 512880076800. Its totient is φ = 39389328576.

The previous prime is 172466091619. The next prime is 172466091643. The reversal of 172466091630 is 36190664271.

172466091630 is a `hidden beast` number, since 1 + 7 + 2 + 4 + 6 + 6 + 0 + 9 + 1 + 630 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 684451 + ... + 901889.

It is an arithmetic number, because the mean of its divisors is an integer number (5342500800).

Almost surely, 2^172466091630 is an apocalyptic number.

172466091630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172466091630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256440038400).

172466091630 is an abundant number, since it is smaller than the sum of its proper divisors (340413985170).

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

172466091630 is a wasteful number, since it uses less digits than its factorization.

172466091630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218718 (or 218715 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 172466091630 in words is "one hundred seventy-two billion, four hundred sixty-six million, ninety-one thousand, six hundred thirty".