40105553003861 has 8 divisors (see below), whose sum is σ = 40377090188160. Its totient is φ = 39834326683872.

The previous prime is 40105553003827. The next prime is 40105553003941. The reversal of 40105553003861 is 16830035550104.

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

It is a cyclic number.

It is not a de Polignac number, because 40105553003861 - 2³⁸ = 39830675096917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40105553003821) 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, 77457176 + ... + 77973233.

It is an arithmetic number, because the mean of its divisors is an integer number (5047136273520).

Almost surely, 2^{40105553003861} is an apocalyptic number.

It is an amenable number.

40105553003861 is a deficient number, since it is larger than the sum of its proper divisors (271537184299).

40105553003861 is a wasteful number, since it uses less digits than its factorization.

40105553003861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155432155.

The product of its (nonzero) digits is 216000, while the sum is 41.

Adding to 40105553003861 its reverse (16830035550104), we get a palindrome (56935588553965).

The spelling of 40105553003861 in words is "forty trillion, one hundred five billion, five hundred fifty-three million, three thousand, eight hundred sixty-one".