66148156 has 48 divisors (see below), whose sum is σ = 128241792. Its totient is φ = 29721600.

The previous prime is 66148153. The next prime is 66148189. The reversal of 66148156 is 65184166.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66148151) 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, 153261 + ... + 153691.

It is an arithmetic number, because the mean of its divisors is an integer number (2671704).

Almost surely, 2^66148156 is an apocalyptic number.

It is an amenable number.

66148156 is a deficient number, since it is larger than the sum of its proper divisors (62093636).

66148156 is a wasteful number, since it uses less digits than its factorization.

66148156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 548 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 66148156 is about 8133.1516646378. The cubic root of 66148156 is about 404.4261669633.

The spelling of 66148156 in words is "sixty-six million, one hundred forty-eight thousand, one hundred fifty-six".