133233737557 has 2 divisors, whose sum is σ = 133233737558. Its totient is φ = 133233737556.

The previous prime is 133233737551. The next prime is 133233737561. The reversal of 133233737557 is 755737332331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126162777636 + 7070959921 = 355194^2 + 84089^2 .

It is a cyclic number.

It is not a de Polignac number, because 133233737557 - 2¹⁵ = 133233704789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133233737557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133233737551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66616868778 + 66616868779.

It is an arithmetic number, because the mean of its divisors is an integer number (66616868779).

Almost surely, 2^133233737557 is an apocalyptic number.

It is an amenable number.

133233737557 is a deficient number, since it is larger than the sum of its proper divisors (1).

133233737557 is an equidigital number, since it uses as much as digits as its factorization.

133233737557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4167450, while the sum is 49.

The spelling of 133233737557 in words is "one hundred thirty-three billion, two hundred thirty-three million, seven hundred thirty-seven thousand, five hundred fifty-seven".