148955891478099 has 4 divisors (see below), whose sum is σ = 198607855304136. Its totient is φ = 99303927652064.

The previous prime is 148955891478077. The next prime is 148955891478131. The reversal of 148955891478099 is 990874198559841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148955891478099 - 2⁹ = 148955891477587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148955891473099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24825981913014 + ... + 24825981913019.

It is an arithmetic number, because the mean of its divisors is an integer number (49651963826034).

Almost surely, 2^{148955891478099} is an apocalyptic number.

148955891478099 is a deficient number, since it is larger than the sum of its proper divisors (49651963826037).

148955891478099 is an equidigital number, since it uses as much as digits as its factorization.

148955891478099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49651963826036.

The product of its (nonzero) digits is 9405849600, while the sum is 87.

The spelling of 148955891478099 in words is "one hundred forty-eight trillion, nine hundred fifty-five billion, eight hundred ninety-one million, four hundred seventy-eight thousand, ninety-nine".