215422787151 has 96 divisors (see below), whose sum is σ = 401538009600. Its totient is φ = 109208943360.

The previous prime is 215422787147. The next prime is 215422787171. The reversal of 215422787151 is 151787224512.

215422787151 is a `hidden beast` number, since 2 + 1 + 5 + 422 + 78 + 7 + 151 = 666.

215422787151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215422787151 - 2² = 215422787147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215422787097 and 215422787106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215422787131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 370905 + ... + 753933.

It is an arithmetic number, because the mean of its divisors is an integer number (4182687600).

Almost surely, 2^215422787151 is an apocalyptic number.

215422787151 is a deficient number, since it is larger than the sum of its proper divisors (186115222449).

215422787151 is a wasteful number, since it uses less digits than its factorization.

215422787151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383101 (or 383098 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The spelling of 215422787151 in words is "two hundred fifteen billion, four hundred twenty-two million, seven hundred eighty-seven thousand, one hundred fifty-one".