1551116612 has 6 divisors (see below), whose sum is σ = 2714454078. Its totient is φ = 775558304.

The previous prime is 1551116599. The next prime is 1551116647. The reversal of 1551116612 is 2166111551.

It can be written as a sum of positive squares in only one way, i.e., 1525371136 + 25745476 = 39056^2 + 5074^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193889573 + ... + 193889580.

It is an arithmetic number, because the mean of its divisors is an integer number (452409013).

Almost surely, 2^1551116612 is an apocalyptic number.

It is an amenable number.

1551116612 is a deficient number, since it is larger than the sum of its proper divisors (1163337466).

1551116612 is a wasteful number, since it uses less digits than its factorization.

1551116612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387779157 (or 387779155 counting only the distinct ones).

The product of its digits is 1800, while the sum is 29.

The square root of 1551116612 is about 39384.2178035822. The cubic root of 1551116612 is about 1157.5723635578.

It can be divided in two parts, 15511 and 16612, that added together give a palindrome (32123).

The spelling of 1551116612 in words is "one billion, five hundred fifty-one million, one hundred sixteen thousand, six hundred twelve".