155415670151 has 4 divisors (see below), whose sum is σ = 177617908752. Its totient is φ = 133213431552.

The previous prime is 155415670121. The next prime is 155415670153. The reversal of 155415670151 is 151076514551.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155415670151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155415670099 and 155415670108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155415670153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11101119290 + ... + 11101119303.

It is an arithmetic number, because the mean of its divisors is an integer number (44404477188).

Almost surely, 2^155415670151 is an apocalyptic number.

155415670151 is a deficient number, since it is larger than the sum of its proper divisors (22202238601).

155415670151 is an equidigital number, since it uses as much as digits as its factorization.

155415670151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22202238600.

The product of its (nonzero) digits is 105000, while the sum is 41.

The spelling of 155415670151 in words is "one hundred fifty-five billion, four hundred fifteen million, six hundred seventy thousand, one hundred fifty-one".