721000601652 has 48 divisors (see below), whose sum is σ = 1685377149120. Its totient is φ = 239899112448.

The previous prime is 721000601627. The next prime is 721000601663. The reversal of 721000601652 is 256106000127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34177924 + ... + 34199012.

It is an arithmetic number, because the mean of its divisors is an integer number (35112023940).

Almost surely, 2^721000601652 is an apocalyptic number.

It is an amenable number.

721000601652 is an abundant number, since it is smaller than the sum of its proper divisors (964376547468).

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

721000601652 is a wasteful number, since it uses less digits than its factorization.

721000601652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26112 (or 26110 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 721000601652 its reverse (256106000127), we get a palindrome (977106601779).

The spelling of 721000601652 in words is "seven hundred twenty-one billion, six hundred one thousand, six hundred fifty-two".