20173606651425 has 24 divisors (see below), whose sum is σ = 33354066008704. Its totient is φ = 10759137629760.

The previous prime is 20173606651423. The next prime is 20173606651427. The reversal of 20173606651425 is 52415660637102.

It is an interprime number because it is at equal distance from previous prime (20173606651423) and next prime (20173606651427).

It is not a de Polignac number, because 20173606651425 - 2¹ = 20173606651423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20173606651423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5540904 + ... + 8429046.

Almost surely, 2^{20173606651425} is an apocalyptic number.

20173606651425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20173606651425 is a deficient number, since it is larger than the sum of its proper divisors (13180459357279).

20173606651425 is a wasteful number, since it uses less digits than its factorization.

20173606651425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981289 (or 2981284 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 20173606651425 in words is "twenty trillion, one hundred seventy-three billion, six hundred six million, six hundred fifty-one thousand, four hundred twenty-five".