102720752604 has 144 divisors (see below), whose sum is σ = 279786780000. Its totient is φ = 31658065920.

The previous prime is 102720752527. The next prime is 102720752611. The reversal of 102720752604 is 406257027201.

It is a happy number.

102720752604 is a `hidden beast` number, since 1 + 0 + 27 + 20 + 7 + 5 + 2 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 46626567 + ... + 46628769.

It is an arithmetic number, because the mean of its divisors is an integer number (1942963750).

Almost surely, 2^102720752604 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 102720752604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139893390000).

102720752604 is an abundant number, since it is smaller than the sum of its proper divisors (177066027396).

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

102720752604 is a wasteful number, since it uses less digits than its factorization.

102720752604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

Adding to 102720752604 its reverse (406257027201), we get a palindrome (508977779805).

The spelling of 102720752604 in words is "one hundred two billion, seven hundred twenty million, seven hundred fifty-two thousand, six hundred four".