215422453605 has 16 divisors (see below), whose sum is σ = 359661836160. Its totient is φ = 109896671808.

The previous prime is 215422453583. The next prime is 215422453619. The reversal of 215422453605 is 506354224512.

It is not a de Polignac number, because 215422453605 - 2⁸ = 215422453349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312206110 + ... + 312206799.

It is an arithmetic number, because the mean of its divisors is an integer number (22478864760).

Almost surely, 2^215422453605 is an apocalyptic number.

It is an amenable number.

215422453605 is a deficient number, since it is larger than the sum of its proper divisors (144239382555).

215422453605 is a wasteful number, since it uses less digits than its factorization.

215422453605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624412940.

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 215422453605 in words is "two hundred fifteen billion, four hundred twenty-two million, four hundred fifty-three thousand, six hundred five".