155051000015 has 8 divisors (see below), whose sum is σ = 187136699328. Its totient is φ = 123323800480.

The previous prime is 155050999981. The next prime is 155051000017. The reversal of 155051000015 is 510000150551.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-155051000015 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 (155051000017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89623991 + ... + 89625720.

It is an arithmetic number, because the mean of its divisors is an integer number (23392087416).

Almost surely, 2^155051000015 is an apocalyptic number.

155051000015 is a deficient number, since it is larger than the sum of its proper divisors (32085699313).

155051000015 is a wasteful number, since it uses less digits than its factorization.

155051000015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179249889.

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 155051000015 its reverse (510000150551), we get a palindrome (665051150566).

The spelling of 155051000015 in words is "one hundred fifty-five billion, fifty-one million, fifteen", and thus it is an aban number.