40665345150015 has 192 divisors, whose sum is σ = 79269774105600. Its totient is φ = 19723341141504.

The previous prime is 40665345149969. The next prime is 40665345150043. The reversal of 40665345150015 is 51005154356604.

40665345150015 is a `hidden beast` number, since 4 + 0 + 6 + 6 + 534 + 51 + 50 + 0 + 15 = 666.

It is not a de Polignac number, because 40665345150015 - 2²¹ = 40665343052863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 373135062 + ... + 373244028.

It is an arithmetic number, because the mean of its divisors is an integer number (412863406800).

Almost surely, 2^{40665345150015} is an apocalyptic number.

40665345150015 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40665345150015 is a deficient number, since it is larger than the sum of its proper divisors (38604428955585).

40665345150015 is a wasteful number, since it uses less digits than its factorization.

40665345150015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109231 (or 109196 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 40665345150015 in words is "forty trillion, six hundred sixty-five billion, three hundred forty-five million, one hundred fifty thousand, fifteen".