1551197066 has 16 divisors (see below), whose sum is σ = 2440938240. Its totient is φ = 738304560.

The previous prime is 1551197047. The next prime is 1551197077. The reversal of 1551197066 is 6607911551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184226 + ... + 192461.

It is an arithmetic number, because the mean of its divisors is an integer number (152558640).

Almost surely, 2^1551197066 is an apocalyptic number.

1551197066 is a deficient number, since it is larger than the sum of its proper divisors (889741174).

1551197066 is a wasteful number, since it uses less digits than its factorization.

1551197066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376789.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 1551197066 is about 39385.2391893207. The cubic root of 1551197066 is about 1157.5923770363.

The spelling of 1551197066 in words is "one billion, five hundred fifty-one million, one hundred ninety-seven thousand, sixty-six".