20014444646651 has 16 divisors (see below), whose sum is σ = 24633878642688. Its totient is φ = 15835144269600.

The previous prime is 20014444646641. The next prime is 20014444646681. The reversal of 20014444646651 is 15664644441002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20014444646651 - 2³⁸ = 19739566739707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20014444646596 and 20014444646605.

It is not an unprimeable number, because it can be changed into a prime (20014444646641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31355 + ... + 6326916.

It is an arithmetic number, because the mean of its divisors is an integer number (1539617415168).

Almost surely, 2^{20014444646651} is an apocalyptic number.

20014444646651 is a deficient number, since it is larger than the sum of its proper divisors (4619433996037).

20014444646651 is a wasteful number, since it uses less digits than its factorization.

20014444646651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6392882.

The product of its (nonzero) digits is 2211840, while the sum is 47.

The spelling of 20014444646651 in words is "twenty trillion, fourteen billion, four hundred forty-four million, six hundred forty-six thousand, six hundred fifty-one".