15223116740 has 48 divisors (see below), whose sum is σ = 35614842480. Its totient is φ = 5427018240.

The previous prime is 15223116737. The next prime is 15223116757. The reversal of 15223116740 is 4761132251.

It can be written as a sum of positive squares in 8 ways, for example, as 68029504 + 15155087236 = 8248^2 + 123106^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15223116697 and 15223116706.

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, 1001951 + ... + 1017030.

It is an arithmetic number, because the mean of its divisors is an integer number (741975885).

Almost surely, 2^15223116740 is an apocalyptic number.

15223116740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15223116740 is an abundant number, since it is smaller than the sum of its proper divisors (20391725740).

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

15223116740 is a wasteful number, since it uses less digits than its factorization.

15223116740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019032 (or 2019030 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 15223116740 its reverse (4761132251), we get a palindrome (19984248991).

The spelling of 15223116740 in words is "fifteen billion, two hundred twenty-three million, one hundred sixteen thousand, seven hundred forty".