40015512501420 has 96 divisors (see below), whose sum is σ = 113883850967040. Its totient is φ = 10495536802560.

The previous prime is 40015512501347. The next prime is 40015512501421. The reversal of 40015512501420 is 2410521551004.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (40015512501421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127060669 + ... + 127375211.

It is an arithmetic number, because the mean of its divisors is an integer number (1186290114240).

Almost surely, 2^{40015512501420} is an apocalyptic number.

It is an amenable number.

40015512501420 is an abundant number, since it is smaller than the sum of its proper divisors (73868338465620).

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

40015512501420 is a wasteful number, since it uses less digits than its factorization.

40015512501420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349375 (or 349373 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 40015512501420 in words is "forty trillion, fifteen billion, five hundred twelve million, five hundred one thousand, four hundred twenty".