150400321691 has 2 divisors, whose sum is σ = 150400321692. Its totient is φ = 150400321690.

The previous prime is 150400321639. The next prime is 150400321759. The reversal of 150400321691 is 196123004051.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150400321691 is a prime.

It is not a weakly prime, because it can be changed into another prime (150400321891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75200160845 + 75200160846.

It is an arithmetic number, because the mean of its divisors is an integer number (75200160846).

Almost surely, 2^150400321691 is an apocalyptic number.

150400321691 is a deficient number, since it is larger than the sum of its proper divisors (1).

150400321691 is an equidigital number, since it uses as much as digits as its factorization.

150400321691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 150400321691 in words is "one hundred fifty billion, four hundred million, three hundred twenty-one thousand, six hundred ninety-one".