150918515193601 has 2 divisors, whose sum is σ = 150918515193602. Its totient is φ = 150918515193600.

The previous prime is 150918515193599. The next prime is 150918515193619. The reversal of 150918515193601 is 106391515819051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148068766059201 + 2849749134400 = 12168351^2 + 1688120^2 .

It is a cyclic number.

It is not a de Polignac number, because 150918515193601 - 2¹ = 150918515193599 is a prime.

It is a super-3 number, since 3×150918515193601³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 150918515193599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (150918515196601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75459257596800 + 75459257596801.

It is an arithmetic number, because the mean of its divisors is an integer number (75459257596801).

Almost surely, 2^{150918515193601} is an apocalyptic number.

It is an amenable number.

150918515193601 is a deficient number, since it is larger than the sum of its proper divisors (1).

150918515193601 is an equidigital number, since it uses as much as digits as its factorization.

150918515193601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 55.

The spelling of 150918515193601 in words is "one hundred fifty trillion, nine hundred eighteen billion, five hundred fifteen million, one hundred ninety-three thousand, six hundred one".