11615404457040 has 80 divisors (see below), whose sum is σ = 36015957438336. Its totient is φ = 3096735500800.

The previous prime is 11615404457029. The next prime is 11615404457101. The reversal of 11615404457040 is 4075440451611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 11615404456983 and 11615404457001.

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, 4457151 + ... + 6564830.

Almost surely, 2^{11615404457040} is an apocalyptic number.

11615404457040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11615404457040 is an abundant number, since it is smaller than the sum of its proper divisors (24400552981296).

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

11615404457040 is a wasteful number, since it uses less digits than its factorization.

11615404457040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026388 (or 11026382 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 11615404457040 in words is "eleven trillion, six hundred fifteen billion, four hundred four million, four hundred fifty-seven thousand, forty".