15531054223040 has 112 divisors (see below), whose sum is σ = 37035277699680. Its totient is φ = 6203698421760.

The previous prime is 15531054223037. The next prime is 15531054223073. The reversal of 15531054223040 is 4032245013551.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842569546 + ... + 1842577974.

Almost surely, 2^{15531054223040} is an apocalyptic number.

15531054223040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15531054223040 is an abundant number, since it is smaller than the sum of its proper divisors (21504223476640).

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

15531054223040 is an equidigital number, since it uses as much as digits as its factorization.

15531054223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15850 (or 15840 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 15531054223040 its reverse (4032245013551), we get a palindrome (19563299236591).

The spelling of 15531054223040 in words is "fifteen trillion, five hundred thirty-one billion, fifty-four million, two hundred twenty-three thousand, forty".