64206635051 has 16 divisors (see below), whose sum is σ = 69501381600. Its totient is φ = 58963120128.

The previous prime is 64206635033. The next prime is 64206635069. The reversal of 64206635051 is 15053660246.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64206635033) and next prime (64206635069).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64206635051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64206634996 and 64206635014.

It is not an unprimeable number, because it can be changed into a prime (64206635851) 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, 4186940 + ... + 4202246.

It is an arithmetic number, because the mean of its divisors is an integer number (4343836350).

Almost surely, 2^64206635051 is an apocalyptic number.

64206635051 is a deficient number, since it is larger than the sum of its proper divisors (5294746549).

64206635051 is a wasteful number, since it uses less digits than its factorization.

64206635051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16958.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 64206635051 in words is "sixty-four billion, two hundred six million, six hundred thirty-five thousand, fifty-one".