15450055140 has 48 divisors (see below), whose sum is σ = 46587860928. Its totient is φ = 3803090304.

The previous prime is 15450055139. The next prime is 15450055163. The reversal of 15450055140 is 4155005451.

It is a super-3 number, since 3×15450055140³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15450055098 and 15450055107.

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, 9903102 + ... + 9904661.

It is an arithmetic number, because the mean of its divisors is an integer number (970580436).

Almost surely, 2^15450055140 is an apocalyptic number.

15450055140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15450055140 is an abundant number, since it is smaller than the sum of its proper divisors (31137805788).

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

15450055140 is a wasteful number, since it uses less digits than its factorization.

15450055140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19807788 (or 19807786 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 15450055140 in words is "fifteen billion, four hundred fifty million, fifty-five thousand, one hundred forty".