155415143051 has 8 divisors (see below), whose sum is σ = 177730667520. Its totient is φ = 133127958888.

The previous prime is 155415143021. The next prime is 155415143153. The reversal of 155415143051 is 150341514551.

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

It is a cyclic number.

It is not a de Polignac number, because 155415143051 - 2²² = 155410948747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155415143021) 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, 7073321 + ... + 7095258.

It is an arithmetic number, because the mean of its divisors is an integer number (22216333440).

Almost surely, 2^155415143051 is an apocalyptic number.

155415143051 is a deficient number, since it is larger than the sum of its proper divisors (22315524469).

155415143051 is a wasteful number, since it uses less digits than its factorization.

155415143051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14170153.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 155415143051 in words is "one hundred fifty-five billion, four hundred fifteen million, one hundred forty-three thousand, fifty-one".