72466066428 has 48 divisors (see below), whose sum is σ = 194012792064. Its totient is φ = 20622096000.

The previous prime is 72466066391. The next prime is 72466066459. The reversal of 72466066428 is 82466066427.

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, 1697425 + ... + 1739592.

It is an arithmetic number, because the mean of its divisors is an integer number (4041933168).

Almost surely, 2^72466066428 is an apocalyptic number.

It is an amenable number.

72466066428 is an abundant number, since it is smaller than the sum of its proper divisors (121546725636).

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

72466066428 is a wasteful number, since it uses less digits than its factorization.

72466066428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437282 (or 3437280 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 51.

Subtracting 72466066428 from its reverse (82466066427), we obtain a palindrome (9999999999).

The spelling of 72466066428 in words is "seventy-two billion, four hundred sixty-six million, sixty-six thousand, four hundred twenty-eight".