149215196555 has 4 divisors (see below), whose sum is σ = 179058235872. Its totient is φ = 119372157240.

The previous prime is 149215196549. The next prime is 149215196573. The reversal of 149215196555 is 555691512941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555691512941 = 193 ⋅2879230637.

It is not a de Polignac number, because 149215196555 - 2¹⁶ = 149215131019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149215196497 and 149215196506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14921519651 + ... + 14921519660.

It is an arithmetic number, because the mean of its divisors is an integer number (44764558968).

Almost surely, 2^149215196555 is an apocalyptic number.

149215196555 is a deficient number, since it is larger than the sum of its proper divisors (29843039317).

149215196555 is an equidigital number, since it uses as much as digits as its factorization.

149215196555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29843039316.

The product of its digits is 2430000, while the sum is 53.

The spelling of 149215196555 in words is "one hundred forty-nine billion, two hundred fifteen million, one hundred ninety-six thousand, five hundred fifty-five".