2261016652451 has 4 divisors (see below), whose sum is σ = 2261031098952. Its totient is φ = 2261002205952.

The previous prime is 2261016652429. The next prime is 2261016652471. The reversal of 2261016652451 is 1542566101622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2261016652451 - 2²² = 2261012458147 is a prime.

It is a super-2 number, since 2×2261016652451² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2261016652399 and 2261016652408.

It is not an unprimeable number, because it can be changed into a prime (2261016652471) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6985886 + ... + 7302371.

It is an arithmetic number, because the mean of its divisors is an integer number (565257774738).

Almost surely, 2^{2261016652451} is an apocalyptic number.

2261016652451 is a deficient number, since it is larger than the sum of its proper divisors (14446501).

2261016652451 is a wasteful number, since it uses less digits than its factorization.

2261016652451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14446500.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 2261016652451 in words is "two trillion, two hundred sixty-one billion, sixteen million, six hundred fifty-two thousand, four hundred fifty-one".