1066641537 has 16 divisors (see below), whose sum is σ = 1598179968. Its totient is φ = 627855360.

The previous prime is 1066641509. The next prime is 1066641571. The reversal of 1066641537 is 7351466601.

1066641537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1066641537 - 2¹¹ = 1066639489 is a prime.

It is a super-2 number, since 2×1066641537² = 2275448336907444738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1066641495 and 1066641504.

It is not an unprimeable number, because it can be changed into a prime (1066648537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593664 + ... + 595457.

It is an arithmetic number, because the mean of its divisors is an integer number (99886248).

Almost surely, 2^1066641537 is an apocalyptic number.

It is an amenable number.

1066641537 is a deficient number, since it is larger than the sum of its proper divisors (531538431).

1066641537 is a wasteful number, since it uses less digits than its factorization.

1066641537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189160.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1066641537 is about 32659.4785169635. The cubic root of 1066641537 is about 1021.7378860031.

The spelling of 1066641537 in words is "one billion, sixty-six million, six hundred forty-one thousand, five hundred thirty-seven".