66133502 has 16 divisors (see below), whose sum is σ = 105302592. Its totient is φ = 31042560.

The previous prime is 66133493. The next prime is 66133511. The reversal of 66133502 is 20533166.

It is an interprime number because it is at equal distance from previous prime (66133493) and next prime (66133511).

It is a congruent number.

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, 12398 + ... + 16910.

It is an arithmetic number, because the mean of its divisors is an integer number (6581412).

Almost surely, 2^66133502 is an apocalyptic number.

66133502 is a deficient number, since it is larger than the sum of its proper divisors (39169090).

66133502 is a wasteful number, since it uses less digits than its factorization.

66133502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 66133502 is about 8132.2507339604. The cubic root of 66133502 is about 404.3963001759.

Adding to 66133502 its reverse (20533166), we get a palindrome (86666668).

The spelling of 66133502 in words is "sixty-six million, one hundred thirty-three thousand, five hundred two".