146535266621 has 2 divisors, whose sum is σ = 146535266622. Its totient is φ = 146535266620.

The previous prime is 146535266609. The next prime is 146535266629. The reversal of 146535266621 is 126662535641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127988640025 + 18546626596 = 357755^2 + 136186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146535266621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146535266629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73267633310 + 73267633311.

It is an arithmetic number, because the mean of its divisors is an integer number (73267633311).

Almost surely, 2^146535266621 is an apocalyptic number.

It is an amenable number.

146535266621 is a deficient number, since it is larger than the sum of its proper divisors (1).

146535266621 is an equidigital number, since it uses as much as digits as its factorization.

146535266621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 47.

The spelling of 146535266621 in words is "one hundred forty-six billion, five hundred thirty-five million, two hundred sixty-six thousand, six hundred twenty-one".