15722255140 has 24 divisors (see below), whose sum is σ = 33019556472. Its totient is φ = 6288364800.

The previous prime is 15722255137. The next prime is 15722255161. The reversal of 15722255140 is 4155222751.

It can be written as a sum of positive squares in 4 ways, for example, as 727273024 + 14994982116 = 26968^2 + 122454^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 15722255096 and 15722255105.

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, 275992 + ... + 328048.

It is an arithmetic number, because the mean of its divisors is an integer number (1375814853).

Almost surely, 2^15722255140 is an apocalyptic number.

15722255140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15722255140 is an abundant number, since it is smaller than the sum of its proper divisors (17297301332).

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

15722255140 is a wasteful number, since it uses less digits than its factorization.

15722255140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67167 (or 67165 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

Adding to 15722255140 its reverse (4155222751), we get a palindrome (19877477891).

The spelling of 15722255140 in words is "fifteen billion, seven hundred twenty-two million, two hundred fifty-five thousand, one hundred forty".