133023000236465 has 16 divisors (see below), whose sum is σ = 160555228765776. Its totient is φ = 105801363148800.

The previous prime is 133023000236461. The next prime is 133023000236549. The reversal of 133023000236465 is 564632000320331.

It can be written as a sum of positive squares in 8 ways, for example, as 1966456508416 + 131056543728049 = 1402304^2 + 11447993^2 .

It is not a de Polignac number, because 133023000236465 - 2² = 133023000236461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133023000236461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85601216 + ... + 87141345.

It is an arithmetic number, because the mean of its divisors is an integer number (10034701797861).

Almost surely, 2^{133023000236465} is an apocalyptic number.

It is an amenable number.

133023000236465 is a deficient number, since it is larger than the sum of its proper divisors (27532228529311).

133023000236465 is a wasteful number, since it uses less digits than its factorization.

133023000236465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172743460.

The product of its (nonzero) digits is 233280, while the sum is 38.

Adding to 133023000236465 its reverse (564632000320331), we get a palindrome (697655000556796).

The spelling of 133023000236465 in words is "one hundred thirty-three trillion, twenty-three billion, two hundred thirty-six thousand, four hundred sixty-five".