35661970801 has 2 divisors, whose sum is σ = 35661970802. Its totient is φ = 35661970800.

The previous prime is 35661970781. The next prime is 35661970849. The reversal of 35661970801 is 10807916653.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30958754401 + 4703216400 = 175951^2 + 68580^2 .

It is a cyclic number.

It is not a de Polignac number, because 35661970801 - 2¹¹ = 35661968753 is a prime.

It is a super-2 number, since 2×35661970801² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (35661970501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17830985400 + 17830985401.

It is an arithmetic number, because the mean of its divisors is an integer number (17830985401).

Almost surely, 2^35661970801 is an apocalyptic number.

It is an amenable number.

35661970801 is a deficient number, since it is larger than the sum of its proper divisors (1).

35661970801 is an equidigital number, since it uses as much as digits as its factorization.

35661970801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 35661970801 in words is "thirty-five billion, six hundred sixty-one million, nine hundred seventy thousand, eight hundred one".