721995141120 has 832 divisors, whose sum is σ = 2604571296768. Its totient is φ = 169279488000.

The previous prime is 721995141107. The next prime is 721995141137. The reversal of 721995141120 is 21141599127.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3421777815 + ... + 3421778025.

Almost surely, 2^721995141120 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 721995141120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1302285648384).

721995141120 is an abundant number, since it is smaller than the sum of its proper divisors (1882576155648).

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

721995141120 is a wasteful number, since it uses less digits than its factorization.

721995141120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 42.

The spelling of 721995141120 in words is "seven hundred twenty-one billion, nine hundred ninety-five million, one hundred forty-one thousand, one hundred twenty".