1266101630040 has 128 divisors (see below), whose sum is σ = 4107598387200. Its totient is φ = 310351695360.

The previous prime is 1266101630039. The next prime is 1266101630063. The reversal of 1266101630040 is 400361016621.

It is a super-3 number, since 3×1266101630040³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1325076 + ... + 2070755.

It is an arithmetic number, because the mean of its divisors is an integer number (32090612400).

Almost surely, 2^{1266101630040} is an apocalyptic number.

1266101630040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1266101630040 is an abundant number, since it is smaller than the sum of its proper divisors (2841496757160).

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

1266101630040 is a wasteful number, since it uses less digits than its factorization.

1266101630040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396097 (or 3396093 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 1266101630040 its reverse (400361016621), we get a palindrome (1666462646661).

The spelling of 1266101630040 in words is "one trillion, two hundred sixty-six billion, one hundred one million, six hundred thirty thousand, forty".