400451022153601 has 2 divisors, whose sum is σ = 400451022153602. Its totient is φ = 400451022153600.

The previous prime is 400451022153569. The next prime is 400451022153691. The reversal of 400451022153601 is 106351220154004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375862554480625 + 24588467672976 = 19387175^2 + 4958676^2 .

It is a cyclic number.

It is not a de Polignac number, because 400451022153601 - 2⁵ = 400451022153569 is a prime.

It is a super-2 number, since 2×400451022153601² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (400451022153691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200225511076800 + 200225511076801.

It is an arithmetic number, because the mean of its divisors is an integer number (200225511076801).

Almost surely, 2^{400451022153601} is an apocalyptic number.

It is an amenable number.

400451022153601 is a deficient number, since it is larger than the sum of its proper divisors (1).

400451022153601 is an equidigital number, since it uses as much as digits as its factorization.

400451022153601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 400451022153601 in words is "four hundred trillion, four hundred fifty-one billion, twenty-two million, one hundred fifty-three thousand, six hundred one".