15601450000 has 60 divisors (see below), whose sum is σ = 37782464580. Its totient is φ = 6240560000.

The previous prime is 15601449979. The next prime is 15601450009. The reversal of 15601450000 is 5410651.

It can be written as a sum of positive squares in 6 ways, for example, as 13568522256 + 2032927744 = 116484^2 + 45088^2 .

It is not an unprimeable number, because it can be changed into a prime (15601450009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106015 + ... + 206014.

It is an arithmetic number, because the mean of its divisors is an integer number (629707743).

Almost surely, 2^15601450000 is an apocalyptic number.

15601450000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15601450000 is an abundant number, since it is smaller than the sum of its proper divisors (22181014580).

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

15601450000 is an frugal number, since it uses more digits than its factorization.

15601450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312062 (or 312036 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 15601450000 its reverse (5410651), we get a palindrome (15606860651).

The spelling of 15601450000 in words is "fifteen billion, six hundred one million, four hundred fifty thousand".