1006774999155 has 24 divisors (see below), whose sum is σ = 1745130828480. Its totient is φ = 536930000640.

The previous prime is 1006774999151. The next prime is 1006774999157. The reversal of 1006774999155 is 5519994776001.

1006774999155 is a `hidden beast` number, since 1 + 0 + 0 + 6 + 7 + 7 + 499 + 91 + 55 = 666.

It is not a de Polignac number, because 1006774999155 - 2² = 1006774999151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1006774999092 and 1006774999101.

It is not an unprimeable number, because it can be changed into a prime (1006774999151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1193931 + ... + 1854459.

It is an arithmetic number, because the mean of its divisors is an integer number (72713784520).

Almost surely, 2^{1006774999155} is an apocalyptic number.

1006774999155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1006774999155 is a deficient number, since it is larger than the sum of its proper divisors (738355829325).

1006774999155 is a wasteful number, since it uses less digits than its factorization.

1006774999155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694411 (or 694408 counting only the distinct ones).

The product of its (nonzero) digits is 21432600, while the sum is 63.

The spelling of 1006774999155 in words is "one trillion, six billion, seven hundred seventy-four million, nine hundred ninety-nine thousand, one hundred fifty-five".