1551662071011 has 64 divisors (see below), whose sum is σ = 2487675939840. Its totient is φ = 950210714880.

The previous prime is 1551662070977. The next prime is 1551662071031. The reversal of 1551662071011 is 1101702661551.

1551662071011 is a `hidden beast` number, since 1 + 5 + 5 + 1 + 6 + 620 + 7 + 10 + 11 = 666.

It is not a de Polignac number, because 1551662071011 - 2²² = 1551657876707 is a prime.

It is a super-2 number, since 2×1551662071011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1551662071031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170676576 + ... + 170685666.

It is an arithmetic number, because the mean of its divisors is an integer number (38869936560).

Almost surely, 2^{1551662071011} is an apocalyptic number.

1551662071011 is a deficient number, since it is larger than the sum of its proper divisors (936013868829).

1551662071011 is a wasteful number, since it uses less digits than its factorization.

1551662071011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11433 (or 11427 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The spelling of 1551662071011 in words is "one trillion, five hundred fifty-one billion, six hundred sixty-two million, seventy-one thousand, eleven".