40153561066 has 8 divisors (see below), whose sum is σ = 62307250020. Its totient is φ = 19384477728.

The previous prime is 40153561033. The next prime is 40153561067. The reversal of 40153561066 is 66016535104.

It can be written as a sum of positive squares in 2 ways, for example, as 38016810441 + 2136750625 = 194979^2 + 46225^2 .

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

It is a super-2 number, since 2×40153561066² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40153561067) 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, 346151331 + ... + 346151446.

Almost surely, 2^40153561066 is an apocalyptic number.

40153561066 is a deficient number, since it is larger than the sum of its proper divisors (22153688954).

40153561066 is a wasteful number, since it uses less digits than its factorization.

40153561066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692302808.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 40153561066 in words is "forty billion, one hundred fifty-three million, five hundred sixty-one thousand, sixty-six".