40201464111621 has 4 divisors (see below), whose sum is σ = 53601952148832. Its totient is φ = 26800976074412.

The previous prime is 40201464111617. The next prime is 40201464111631. The reversal of 40201464111621 is 12611146410204.

It is a happy number.

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 40201464111621 - 2² = 40201464111617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40201464111631) 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, 6700244018601 + ... + 6700244018606.

It is an arithmetic number, because the mean of its divisors is an integer number (13400488037208).

Almost surely, 2^{40201464111621} is an apocalyptic number.

It is an amenable number.

40201464111621 is a deficient number, since it is larger than the sum of its proper divisors (13400488037211).

40201464111621 is a wasteful number, since it uses less digits than its factorization.

40201464111621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400488037210.

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 40201464111621 in words is "forty trillion, two hundred one billion, four hundred sixty-four million, one hundred eleven thousand, six hundred twenty-one".