2661267417 has 16 divisors (see below), whose sum is σ = 3781416960. Its totient is φ = 1660930832.

The previous prime is 2661267383. The next prime is 2661267419. The reversal of 2661267417 is 7147621662.

It is not a de Polignac number, because 2661267417 - 2¹² = 2661263321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2661267419) 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, 407067 + ... + 413552.

It is an arithmetic number, because the mean of its divisors is an integer number (236338560).

Almost surely, 2^2661267417 is an apocalyptic number.

It is an amenable number.

2661267417 is a deficient number, since it is larger than the sum of its proper divisors (1120149543).

2661267417 is a wasteful number, since it uses less digits than its factorization.

2661267417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820692.

The product of its digits is 169344, while the sum is 42.

The square root of 2661267417 is about 51587.4734504414. The cubic root of 2661267417 is about 1385.7860086826.

The spelling of 2661267417 in words is "two billion, six hundred sixty-one million, two hundred sixty-seven thousand, four hundred seventeen".