672332254544440 has 256 divisors, whose sum is σ = 1815684897945600. Its totient is φ = 219180330141696.

The previous prime is 672332254544227. The next prime is 672332254544453. The reversal of 672332254544440 is 44445452233276.

It is a super-2 number, since 2×672332254544440² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1913212989 + ... + 1913564371.

It is an arithmetic number, because the mean of its divisors is an integer number (7092519132600).

Almost surely, 2^{672332254544440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672332254544440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907842448972800).

672332254544440 is an abundant number, since it is smaller than the sum of its proper divisors (1143352643401160).

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

672332254544440 is a wasteful number, since it uses less digits than its factorization.

672332254544440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355014 (or 355010 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 55.

The spelling of 672332254544440 in words is "six hundred seventy-two trillion, three hundred thirty-two billion, two hundred fifty-four million, five hundred forty-four thousand, four hundred forty".