151204599991 has 2 divisors, whose sum is σ = 151204599992. Its totient is φ = 151204599990.

The previous prime is 151204599983. The next prime is 151204600013. The reversal of 151204599991 is 199995402151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151204599991 - 2³ = 151204599983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151204599901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75602299995 + 75602299996.

It is an arithmetic number, because the mean of its divisors is an integer number (75602299996).

Almost surely, 2^151204599991 is an apocalyptic number.

151204599991 is a deficient number, since it is larger than the sum of its proper divisors (1).

151204599991 is an equidigital number, since it uses as much as digits as its factorization.

151204599991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312200, while the sum is 55.

The spelling of 151204599991 in words is "one hundred fifty-one billion, two hundred four million, five hundred ninety-nine thousand, nine hundred ninety-one".