64951215946 has 8 divisors (see below), whose sum is σ = 98391446244. Its totient is φ = 32154067200.

The previous prime is 64951215941. The next prime is 64951215991.

64951215946 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 50505820225 + 14445395721 = 224735^2 + 120189^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 64951215893 and 64951215902.

It is not an unprimeable number, because it can be changed into a prime (64951215941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160770135 + ... + 160770538.

Almost surely, 2^64951215946 is an apocalyptic number.

64951215946 is a deficient number, since it is larger than the sum of its proper divisors (33440230298).

64951215946 is a wasteful number, since it uses less digits than its factorization.

64951215946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321540776.

The product of its digits is 2332800, while the sum is 52.

The spelling of 64951215946 in words is "sixty-four billion, nine hundred fifty-one million, two hundred fifteen thousand, nine hundred forty-six".