51220001244266 has 8 divisors (see below), whose sum is σ = 76850236273860. Its totient is φ = 25603255819648.

The previous prime is 51220001244263. The next prime is 51220001244283. The reversal of 51220001244266 is 66244210002215.

It can be written as a sum of positive squares in 2 ways, for example, as 29903081393641 + 21316919850625 = 5468371^2 + 4617025^2 .

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

It is a super-2 number, since 2×51220001244266² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51220001244263) 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, 3372391751 + ... + 3372406938.

Almost surely, 2^{51220001244266} is an apocalyptic number.

51220001244266 is a deficient number, since it is larger than the sum of its proper divisors (25630235029594).

51220001244266 is a wasteful number, since it uses less digits than its factorization.

51220001244266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6744802488.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 51220001244266 in words is "fifty-one trillion, two hundred twenty billion, one million, two hundred forty-four thousand, two hundred sixty-six".