133465012265531 has 16 divisors (see below), whose sum is σ = 145158759383904. Its totient is φ = 122199350183424.

The previous prime is 133465012265489. The next prime is 133465012265539. The reversal of 133465012265531 is 135562210564331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133465012265531 is a prime.

It is a super-2 number, since 2×133465012265531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133465012265539) 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, 13303805 + ... + 21069438.

It is an arithmetic number, because the mean of its divisors is an integer number (9072422461494).

Almost surely, 2^{133465012265531} is an apocalyptic number.

133465012265531 is a deficient number, since it is larger than the sum of its proper divisors (11693747118373).

133465012265531 is a wasteful number, since it uses less digits than its factorization.

133465012265531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34379470.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 133465012265531 in words is "one hundred thirty-three trillion, four hundred sixty-five billion, twelve million, two hundred sixty-five thousand, five hundred thirty-one".