15049961220 has 384 divisors, whose sum is σ = 53694627840. Its totient is φ = 3072706560.

The previous prime is 15049961219. The next prime is 15049961239. The reversal of 15049961220 is 2216994051.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8683474 + ... + 8685206.

It is an arithmetic number, because the mean of its divisors is an integer number (139829760).

Almost surely, 2^15049961220 is an apocalyptic number.

15049961220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15049961220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26847313920).

15049961220 is an abundant number, since it is smaller than the sum of its proper divisors (38644666620).

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

15049961220 is a wasteful number, since it uses less digits than its factorization.

15049961220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 15049961220 in words is "fifteen billion, forty-nine million, nine hundred sixty-one thousand, two hundred twenty".