1262142887166 has 64 divisors (see below), whose sum is σ = 3205747238400. Its totient is φ = 360577942848.

The previous prime is 1262142887101. The next prime is 1262142887179. The reversal of 1262142887166 is 6617882412621.

1262142887166 is a `hidden beast` number, since 1 + 2 + 621 + 4 + 2 + 8 + 8 + 7 + 1 + 6 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3960370 + ... + 4267178.

It is an arithmetic number, because the mean of its divisors is an integer number (50089800600).

Almost surely, 2^{1262142887166} is an apocalyptic number.

1262142887166 is an abundant number, since it is smaller than the sum of its proper divisors (1943604351234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1262142887166 is a wasteful number, since it uses less digits than its factorization.

1262142887166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317710 (or 317704 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 1262142887166 in words is "one trillion, two hundred sixty-two billion, one hundred forty-two million, eight hundred eighty-seven thousand, one hundred sixty-six".