149599929551 has 2 divisors, whose sum is σ = 149599929552. Its totient is φ = 149599929550.

The previous prime is 149599929539. The next prime is 149599929587. The reversal of 149599929551 is 155929995941.

It is a weak prime.

It is an emirp because it is prime and its reverse (155929995941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149599929551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149599926551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74799964775 + 74799964776.

It is an arithmetic number, because the mean of its divisors is an integer number (74799964776).

Almost surely, 2^149599929551 is an apocalyptic number.

149599929551 is a deficient number, since it is larger than the sum of its proper divisors (1).

149599929551 is an equidigital number, since it uses as much as digits as its factorization.

149599929551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59049000, while the sum is 68.

The spelling of 149599929551 in words is "one hundred forty-nine billion, five hundred ninety-nine million, nine hundred twenty-nine thousand, five hundred fifty-one".