3666700551 has 4 divisors (see below), whose sum is σ = 4888934072. Its totient is φ = 2444467032.

The previous prime is 3666700523. The next prime is 3666700567. The reversal of 3666700551 is 1550076663.

3666700551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3666700551 - 2⁶ = 3666700487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666700451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611116756 + ... + 611116761.

It is an arithmetic number, because the mean of its divisors is an integer number (1222233518).

Almost surely, 2^3666700551 is an apocalyptic number.

3666700551 is a deficient number, since it is larger than the sum of its proper divisors (1222233521).

3666700551 is a wasteful number, since it uses less digits than its factorization.

3666700551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222233520.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 3666700551 is about 60553.2868719775. The cubic root of 3666700551 is about 1542.0264197472.

The spelling of 3666700551 in words is "three billion, six hundred sixty-six million, seven hundred thousand, five hundred fifty-one".