20246142254 has 16 divisors (see below), whose sum is σ = 33029125920. Its totient is φ = 9251853600.

The previous prime is 20246142239. The next prime is 20246142263. The reversal of 20246142254 is 45224164202.

It is a self number, because there is not a number n which added to its sum of digits gives 20246142254.

It is a congruent number.

It is an unprimeable number.

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, 3852314 + ... + 3857565.

It is an arithmetic number, because the mean of its divisors is an integer number (2064320370).

Almost surely, 2^20246142254 is an apocalyptic number.

20246142254 is a deficient number, since it is larger than the sum of its proper divisors (12782983666).

20246142254 is a wasteful number, since it uses less digits than its factorization.

20246142254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709995.

The product of its (nonzero) digits is 30720, while the sum is 32.

The spelling of 20246142254 in words is "twenty billion, two hundred forty-six million, one hundred forty-two thousand, two hundred fifty-four".