149081656899 has 32 divisors (see below), whose sum is σ = 230109880320. Its totient is φ = 84088416672.

The previous prime is 149081656883. The next prime is 149081656993. The reversal of 149081656899 is 998656180941.

It is not a de Polignac number, because 149081656899 - 2⁴ = 149081656883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149081656699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7533592 + ... + 7553354.

It is an arithmetic number, because the mean of its divisors is an integer number (7190933760).

Almost surely, 2^149081656899 is an apocalyptic number.

149081656899 is a deficient number, since it is larger than the sum of its proper divisors (81028223421).

149081656899 is a wasteful number, since it uses less digits than its factorization.

149081656899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24399.

The product of its (nonzero) digits is 33592320, while the sum is 66.

The spelling of 149081656899 in words is "one hundred forty-nine billion, eighty-one million, six hundred fifty-six thousand, eight hundred ninety-nine".