14991023040 has 224 divisors, whose sum is σ = 55142952960. Its totient is φ = 3379470336.

The previous prime is 14991023027. The next prime is 14991023051. The reversal of 14991023040 is 4032019941.

It is a tau number, because it is divible by the number of its divisors (224).

It is a junction number, because it is equal to n+sod(n) for n = 14991022992 and 14991023010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475281 + ... + 505839.

Almost surely, 2^14991023040 is an apocalyptic number.

14991023040 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 14991023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27571476480).

14991023040 is an abundant number, since it is smaller than the sum of its proper divisors (40151929920).

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

14991023040 is a wasteful number, since it uses less digits than its factorization.

14991023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30659 (or 30649 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 14991023040 in words is "fourteen billion, nine hundred ninety-one million, twenty-three thousand, forty".