20147662415 has 8 divisors (see below), whose sum is σ = 25449678960. Its totient is φ = 15269807232.

The previous prime is 20147662411. The next prime is 20147662459. The reversal of 20147662415 is 51426674102.

It is a happy number.

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 20147662415 - 2² = 20147662411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20147662411) 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 7 ways as a sum of consecutive naturals, for example, 106040234 + ... + 106040423.

It is an arithmetic number, because the mean of its divisors is an integer number (3181209870).

Almost surely, 2^20147662415 is an apocalyptic number.

20147662415 is a deficient number, since it is larger than the sum of its proper divisors (5302016545).

20147662415 is a wasteful number, since it uses less digits than its factorization.

20147662415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212080681.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 20147662415 in words is "twenty billion, one hundred forty-seven million, six hundred sixty-two thousand, four hundred fifteen".