15720102104 has 32 divisors (see below), whose sum is σ = 33702324480. Its totient is φ = 6733908384.

The previous prime is 15720102103. The next prime is 15720102137. The reversal of 15720102104 is 40120102751.

It is a super-2 number, since 2×15720102104² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15720102104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15720102103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49619 + ... + 184125.

It is an arithmetic number, because the mean of its divisors is an integer number (1053197640).

Almost surely, 2^15720102104 is an apocalyptic number.

15720102104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15720102104 is an abundant number, since it is smaller than the sum of its proper divisors (17982222376).

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

15720102104 is a wasteful number, since it uses less digits than its factorization.

15720102104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136607 (or 136603 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 15720102104 its reverse (40120102751), we get a palindrome (55840204855).

The spelling of 15720102104 in words is "fifteen billion, seven hundred twenty million, one hundred two thousand, one hundred four".