1066125651 has 8 divisors (see below), whose sum is σ = 1421993424. Its totient is φ = 710504160.

The previous prime is 1066125649. The next prime is 1066125667. The reversal of 1066125651 is 1565216601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1066125651 - 2¹ = 1066125649 is a prime.

It is a super-2 number, since 2×1066125651² = 2273247807440347602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066125251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51220 + ... + 68961.

It is an arithmetic number, because the mean of its divisors is an integer number (177749178).

Almost surely, 2^1066125651 is an apocalyptic number.

1066125651 is a deficient number, since it is larger than the sum of its proper divisors (355867773).

1066125651 is a wasteful number, since it uses less digits than its factorization.

1066125651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123141.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 1066125651 is about 32651.5796095687. The cubic root of 1066125651 is about 1021.5731367243.

The spelling of 1066125651 in words is "one billion, sixty-six million, one hundred twenty-five thousand, six hundred fifty-one".