15958132340 has 24 divisors (see below), whose sum is σ = 34329447432. Its totient is φ = 6227563520.

The previous prime is 15958132331. The next prime is 15958132387. The reversal of 15958132340 is 4323185951.

It can be written as a sum of positive squares in 4 ways, for example, as 195832036 + 15762300304 = 13994^2 + 125548^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9729749 + ... + 9731388.

It is an arithmetic number, because the mean of its divisors is an integer number (1430393643).

Almost surely, 2^15958132340 is an apocalyptic number.

15958132340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15958132340 is an abundant number, since it is smaller than the sum of its proper divisors (18371315092).

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

15958132340 is a wasteful number, since it uses less digits than its factorization.

15958132340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19461187 (or 19461185 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 15958132340 in words is "fifteen billion, nine hundred fifty-eight million, one hundred thirty-two thousand, three hundred forty".