2261966908642 has 16 divisors (see below), whose sum is σ = 3877704505152. Its totient is φ = 969402652560.

The previous prime is 2261966908633. The next prime is 2261966908703. The reversal of 2261966908642 is 2468096691622.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274917 + ... + 2144647.

It is an arithmetic number, because the mean of its divisors is an integer number (242356531572).

Almost surely, 2^{2261966908642} is an apocalyptic number.

2261966908642 is a deficient number, since it is larger than the sum of its proper divisors (1615737596510).

2261966908642 is a wasteful number, since it uses less digits than its factorization.

2261966908642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956153.

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 2261966908642 in words is "two trillion, two hundred sixty-one billion, nine hundred sixty-six million, nine hundred eight thousand, six hundred forty-two".