15910955490 has 64 divisors (see below), whose sum is σ = 40270371840. Its totient is φ = 4012182720.

The previous prime is 15910955483. The next prime is 15910955507. The reversal of 15910955490 is 9455901951.

It is a super-2 number, since 2×15910955490² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286275 + ... + 337305.

It is an arithmetic number, because the mean of its divisors is an integer number (629224560).

Almost surely, 2^15910955490 is an apocalyptic number.

15910955490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15910955490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20135185920).

15910955490 is an abundant number, since it is smaller than the sum of its proper divisors (24359416350).

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

15910955490 is a wasteful number, since it uses less digits than its factorization.

15910955490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51607.

The product of its (nonzero) digits is 364500, while the sum is 48.

The spelling of 15910955490 in words is "fifteen billion, nine hundred ten million, nine hundred fifty-five thousand, four hundred ninety".