15155545464 has 96 divisors (see below), whose sum is σ = 43263136800. Its totient is φ = 4785580800.

The previous prime is 15155545463. The next prime is 15155545487. The reversal of 15155545464 is 46454555151.

15155545464 is a `hidden beast` number, since 1 + 5 + 1 + 55 + 54 + 546 + 4 = 666.

It is a super-2 number, since 2×15155545464² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15155545463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42189 + ... + 179139.

It is an arithmetic number, because the mean of its divisors is an integer number (450657675).

Almost surely, 2^15155545464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15155545464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21631568400).

15155545464 is an abundant number, since it is smaller than the sum of its proper divisors (28107591336).

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

15155545464 is a wasteful number, since it uses less digits than its factorization.

15155545464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137045 (or 137038 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

The spelling of 15155545464 in words is "fifteen billion, one hundred fifty-five million, five hundred forty-five thousand, four hundred sixty-four".