15457670550 has 144 divisors (see below), whose sum is σ = 47518149120. Its totient is φ = 3529033920.

The previous prime is 15457670531. The next prime is 15457670561. The reversal of 15457670550 is 5507675451.

15457670550 is a `hidden beast` number, since 1 + 5 + 4 + 576 + 70 + 5 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 15457670496 and 15457670505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3270489 + ... + 3275211.

Almost surely, 2^15457670550 is an apocalyptic number.

15457670550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15457670550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23759074560).

15457670550 is an abundant number, since it is smaller than the sum of its proper divisors (32060478570).

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

15457670550 is a wasteful number, since it uses less digits than its factorization.

15457670550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787 (or 5779 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 45.

The spelling of 15457670550 in words is "fifteen billion, four hundred fifty-seven million, six hundred seventy thousand, five hundred fifty".