40365561034057 has 4 divisors (see below), whose sum is σ = 46132069753216. Its totient is φ = 34599052314900.

The previous prime is 40365561033961. The next prime is 40365561034109. The reversal of 40365561034057 is 75043016556304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40365561034057 - 2⁷ = 40365561033929 is a prime.

It is a super-3 number, since 3×40365561034057³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40365561034057.

It is not an unprimeable number, because it can be changed into a prime (40365561004057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2883254359569 + ... + 2883254359582.

It is an arithmetic number, because the mean of its divisors is an integer number (11533017438304).

Almost surely, 2^{40365561034057} is an apocalyptic number.

It is an amenable number.

40365561034057 is a deficient number, since it is larger than the sum of its proper divisors (5766508719159).

40365561034057 is an equidigital number, since it uses as much as digits as its factorization.

40365561034057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766508719158.

The product of its (nonzero) digits is 4536000, while the sum is 49.

The spelling of 40365561034057 in words is "forty trillion, three hundred sixty-five billion, five hundred sixty-one million, thirty-four thousand, fifty-seven".