722125566450 has 126 divisors (see below), whose sum is σ = 2014261641597. Its totient is φ = 192523554000.

The previous prime is 722125566397. The next prime is 722125566467. The reversal of 722125566450 is 54665521227.

722125566450 is a `hidden beast` number, since 7 + 2 + 21 + 25 + 566 + 45 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 707683055121 + 14442511329 = 841239^2 + 120177^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=600885.

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

It is a junction number, because it is equal to n+sod(n) for n = 722125566396 and 722125566405.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 162236725 + ... + 162241175.

Almost surely, 2^722125566450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722125566450

722125566450 is an abundant number, since it is smaller than the sum of its proper divisors (1292136075147).

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

722125566450 is an frugal number, since it uses more digits than its factorization.

722125566450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8932 (or 4461 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 722125566450 in words is "seven hundred twenty-two billion, one hundred twenty-five million, five hundred sixty-six thousand, four hundred fifty".