20150102415 has 8 divisors (see below), whose sum is σ = 32240163888. Its totient is φ = 10746721280.

The previous prime is 20150102411. The next prime is 20150102443. The reversal of 20150102415 is 51420105102.

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

It is not a de Polignac number, because 20150102415 - 2² = 20150102411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20150102391 and 20150102400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150102411) 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, 671670066 + ... + 671670095.

It is an arithmetic number, because the mean of its divisors is an integer number (4030020486).

Almost surely, 2^20150102415 is an apocalyptic number.

20150102415 is a deficient number, since it is larger than the sum of its proper divisors (12090061473).

20150102415 is a wasteful number, since it uses less digits than its factorization.

20150102415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343340169.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 20150102415 its reverse (51420105102), we get a palindrome (71570207517).

The spelling of 20150102415 in words is "twenty billion, one hundred fifty million, one hundred two thousand, four hundred fifteen".