40020615015 has 8 divisors (see below), whose sum is σ = 64032984048. Its totient is φ = 21344328000.

The previous prime is 40020614999. The next prime is 40020615029. The reversal of 40020615015 is 51051602004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40020615015 - 2⁴ = 40020614999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334020486 + ... + 1334020515.

It is an arithmetic number, because the mean of its divisors is an integer number (8004123006).

Almost surely, 2^40020615015 is an apocalyptic number.

40020615015 is a deficient number, since it is larger than the sum of its proper divisors (24012369033).

40020615015 is a wasteful number, since it uses less digits than its factorization.

40020615015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668041009.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 40020615015 in words is "forty billion, twenty million, six hundred fifteen thousand, fifteen".