1611262266145 has 16 divisors (see below), whose sum is σ = 2221300389888. Its totient is φ = 1099080912960.

The previous prime is 1611262266079. The next prime is 1611262266161. The reversal of 1611262266145 is 5416622621161.

It is not a de Polignac number, because 1611262266145 - 2¹⁵ = 1611262233377 is a prime.

It is a super-2 number, since 2×1611262266145² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120506574 + ... + 120519943.

It is an arithmetic number, because the mean of its divisors is an integer number (138831274368).

Almost surely, 2^{1611262266145} is an apocalyptic number.

It is an amenable number.

1611262266145 is a deficient number, since it is larger than the sum of its proper divisors (610038123743).

1611262266145 is a wasteful number, since it uses less digits than its factorization.

1611262266145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241026720.

The product of its digits is 207360, while the sum is 43.

The spelling of 1611262266145 in words is "one trillion, six hundred eleven billion, two hundred sixty-two million, two hundred sixty-six thousand, one hundred forty-five".