1010666550 has 24 divisors (see below), whose sum is σ = 2506453416. Its totient is φ = 269511040.

The previous prime is 1010666509. The next prime is 1010666633. The reversal of 1010666550 is 556660101.

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

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 11 ways as a sum of consecutive naturals, for example, 3368739 + ... + 3369038.

It is an arithmetic number, because the mean of its divisors is an integer number (104435559).

Almost surely, 2^1010666550 is an apocalyptic number.

1010666550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1010666550 is an abundant number, since it is smaller than the sum of its proper divisors (1495786866).

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

1010666550 is a wasteful number, since it uses less digits than its factorization.

1010666550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737792 (or 6737787 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1010666550 is about 31790.9822119418. The cubic root of 1010666550 is about 1003.5429493523.

The spelling of 1010666550 in words is "one billion, ten million, six hundred sixty-six thousand, five hundred fifty".