66763137 has 24 divisors (see below), whose sum is σ = 104880000. Its totient is φ = 37660896.

The previous prime is 66763091. The next prime is 66763153. The reversal of 66763137 is 73136766.

It is not a de Polignac number, because 66763137 - 2¹⁵ = 66730369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66763095 and 66763104.

It is not an unprimeable number, because it can be changed into a prime (66763337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8739 + ... + 14487.

It is an arithmetic number, because the mean of its divisors is an integer number (4370000).

Almost surely, 2^66763137 is an apocalyptic number.

It is an amenable number.

66763137 is a deficient number, since it is larger than the sum of its proper divisors (38116863).

66763137 is a wasteful number, since it uses less digits than its factorization.

66763137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845 (or 5838 counting only the distinct ones).

The product of its digits is 95256, while the sum is 39.

The square root of 66763137 is about 8170.8712509744. The cubic root of 66763137 is about 405.6756227917.

The spelling of 66763137 in words is "sixty-six million, seven hundred sixty-three thousand, one hundred thirty-seven".