40121507021716 has 12 divisors (see below), whose sum is σ = 70212727301332. Its totient is φ = 20060727792768.

The previous prime is 40121507021669. The next prime is 40121507021723. The reversal of 40121507021716 is 61712070512104.

It can be written as a sum of positive squares in 2 ways, for example, as 18972122490000 + 21149384531716 = 4355700^2 + 4598846^2 .

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 3 ways as a sum of consecutive naturals, for example, 2675925 + ... + 9348988.

Almost surely, 2^{40121507021716} is an apocalyptic number.

It is an amenable number.

40121507021716 is a deficient number, since it is larger than the sum of its proper divisors (30091220279616).

40121507021716 is a wasteful number, since it uses less digits than its factorization.

40121507021716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12859050 (or 12859048 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 40121507021716 in words is "forty trillion, one hundred twenty-one billion, five hundred seven million, twenty-one thousand, seven hundred sixteen".