40235074101661 has 8 divisors (see below), whose sum is σ = 40457540081504. Its totient is φ = 40012610020560.

The previous prime is 40235074101653. The next prime is 40235074101683. The reversal of 40235074101661 is 16610147053204.

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

It is not a de Polignac number, because 40235074101661 - 2³ = 40235074101653 is a prime.

It is a super-2 number, since 2×40235074101661² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235074101161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75811126 + ... + 76340008.

It is an arithmetic number, because the mean of its divisors is an integer number (5057192510188).

Almost surely, 2^{40235074101661} is an apocalyptic number.

It is an amenable number.

40235074101661 is a deficient number, since it is larger than the sum of its proper divisors (222465979843).

40235074101661 is a wasteful number, since it uses less digits than its factorization.

40235074101661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949371.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 40235074101661 in words is "forty trillion, two hundred thirty-five billion, seventy-four million, one hundred one thousand, six hundred sixty-one".