15900246620 has 48 divisors (see below), whose sum is σ = 33619138560. Its totient is φ = 6316632576.

The previous prime is 15900246601. The next prime is 15900246623. The reversal of 15900246620 is 2664200951.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15900246623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4423544 + ... + 4427136.

It is an arithmetic number, because the mean of its divisors is an integer number (700398720).

Almost surely, 2^15900246620 is an apocalyptic number.

15900246620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15900246620 is an abundant number, since it is smaller than the sum of its proper divisors (17718891940).

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

15900246620 is a wasteful number, since it uses less digits than its factorization.

15900246620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054 (or 5052 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 15900246620 in words is "fifteen billion, nine hundred million, two hundred forty-six thousand, six hundred twenty".