722639552885136 has 240 divisors, whose sum is σ = 2050973923934208. Its totient is φ = 237499172064000.

The previous prime is 722639552885123. The next prime is 722639552885153. The reversal of 722639552885136 is 631588255936227.

722639552885136 is a `hidden beast` number, since 7 + 2 + 2 + 6 + 3 + 9 + 5 + 528 + 85 + 13 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 15120805401 + ... + 15120853191.

Almost surely, 2^{722639552885136} 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 722639552885136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025486961967104).

722639552885136 is an abundant number, since it is smaller than the sum of its proper divisors (1328334371049072).

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

722639552885136 is a wasteful number, since it uses less digits than its factorization.

722639552885136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53050 (or 53041 counting only the distinct ones).

The product of its digits is 1306368000, while the sum is 72.

The spelling of 722639552885136 in words is "seven hundred twenty-two trillion, six hundred thirty-nine billion, five hundred fifty-two million, eight hundred eighty-five thousand, one hundred thirty-six".