15464601440 has 96 divisors (see below), whose sum is σ = 37026714816. Its totient is φ = 6103121920.

The previous prime is 15464601433. The next prime is 15464601469. The reversal of 15464601440 is 4410646451.

It is a self number, because there is not a number n which added to its sum of digits gives 15464601440.

It is a congruent number.

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, 4210805 + ... + 4214475.

It is an arithmetic number, because the mean of its divisors is an integer number (385694946).

Almost surely, 2^15464601440 is an apocalyptic number.

15464601440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15464601440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18513357408).

15464601440 is an abundant number, since it is smaller than the sum of its proper divisors (21562113376).

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

15464601440 is a wasteful number, since it uses less digits than its factorization.

15464601440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032 (or 4024 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 15464601440 in words is "fifteen billion, four hundred sixty-four million, six hundred one thousand, four hundred forty".