15499140140 has 24 divisors (see below), whose sum is σ = 35507121552. Its totient is φ = 5636050880.

The previous prime is 15499140119. The next prime is 15499140149. The reversal of 15499140140 is 4104199451.

15499140140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15499140094 and 15499140103.

It is not an unprimeable number, because it can be changed into a prime (15499140149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35225099 + ... + 35225538.

It is an arithmetic number, because the mean of its divisors is an integer number (1479463398).

Almost surely, 2^15499140140 is an apocalyptic number.

15499140140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15499140140 is an abundant number, since it is smaller than the sum of its proper divisors (20007981412).

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

15499140140 is a wasteful number, since it uses less digits than its factorization.

15499140140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70450657 (or 70450655 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 15499140140 in words is "fifteen billion, four hundred ninety-nine million, one hundred forty thousand, one hundred forty".