40005165554 has 4 divisors (see below), whose sum is σ = 60007748334. Its totient is φ = 20002582776.

The previous prime is 40005165517. The next prime is 40005165559. The reversal of 40005165554 is 45556150004.

40005165554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39563199025 + 441966529 = 198905^2 + 21023^2 .

It is not an unprimeable number, because it can be changed into a prime (40005165559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001291387 + ... + 10001291390.

Almost surely, 2^40005165554 is an apocalyptic number.

40005165554 is a deficient number, since it is larger than the sum of its proper divisors (20002582780).

40005165554 is a wasteful number, since it uses less digits than its factorization.

40005165554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002582779.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 40005165554 in words is "forty billion, five million, one hundred sixty-five thousand, five hundred fifty-four".