40166973377 has 2 divisors, whose sum is σ = 40166973378. Its totient is φ = 40166973376.

The previous prime is 40166973361. The next prime is 40166973383. The reversal of 40166973377 is 77337966104.

40166973377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28385173441 + 11781799936 = 168479^2 + 108544^2 .

It is a cyclic number.

It is not a de Polignac number, because 40166973377 - 2⁴ = 40166973361 is a prime.

It is a super-2 number, since 2×40166973377² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40166975377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20083486688 + 20083486689.

It is an arithmetic number, because the mean of its divisors is an integer number (20083486689).

Almost surely, 2^40166973377 is an apocalyptic number.

It is an amenable number.

40166973377 is a deficient number, since it is larger than the sum of its proper divisors (1).

40166973377 is an equidigital number, since it uses as much as digits as its factorization.

40166973377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000752, while the sum is 53.

The spelling of 40166973377 in words is "forty billion, one hundred sixty-six million, nine hundred seventy-three thousand, three hundred seventy-seven".