155150002191 has 8 divisors (see below), whose sum is σ = 217754389120. Its totient is φ = 97989475032.

The previous prime is 155150002181. The next prime is 155150002193. The reversal of 155150002191 is 191200051551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155150002191 - 2²⁶ = 155082893327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155150002193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360964875 + ... + 1360964988.

It is an arithmetic number, because the mean of its divisors is an integer number (27219298640).

Almost surely, 2^155150002191 is an apocalyptic number.

155150002191 is a deficient number, since it is larger than the sum of its proper divisors (62604386929).

155150002191 is a wasteful number, since it uses less digits than its factorization.

155150002191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721929885.

The product of its (nonzero) digits is 2250, while the sum is 30.

The spelling of 155150002191 in words is "one hundred fifty-five billion, one hundred fifty million, two thousand, one hundred ninety-one".