15220353140 has 24 divisors (see below), whose sum is σ = 32059319712. Its totient is φ = 6069745440.

The previous prime is 15220353139. The next prime is 15220353151. The reversal of 15220353140 is 4135302251.

It is a happy number.

It is a congruent number.

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, 1142954 + ... + 1156193.

It is an arithmetic number, because the mean of its divisors is an integer number (1335804988).

Almost surely, 2^15220353140 is an apocalyptic number.

15220353140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15220353140 is an abundant number, since it is smaller than the sum of its proper divisors (16838966572).

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

15220353140 is a wasteful number, since it uses less digits than its factorization.

15220353140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299487 (or 2299485 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 15220353140 its reverse (4135302251), we get a palindrome (19355655391).

The spelling of 15220353140 in words is "fifteen billion, two hundred twenty million, three hundred fifty-three thousand, one hundred forty".