67145650 has 48 divisors (see below), whose sum is σ = 146740608. Its totient is φ = 22536000.

The previous prime is 67145633. The next prime is 67145651. The reversal of 67145650 is 5654176.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67145651) 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, 2455 + ... + 11845.

It is an arithmetic number, because the mean of its divisors is an integer number (3057096).

Almost surely, 2^67145650 is an apocalyptic number.

67145650 is an abundant number, since it is smaller than the sum of its proper divisors (79594958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67145650 is a wasteful number, since it uses less digits than its factorization.

67145650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427 (or 9422 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 67145650 is about 8194.2449316578. The cubic root of 67145650 is about 406.4489077233.

The spelling of 67145650 in words is "sixty-seven million, one hundred forty-five thousand, six hundred fifty".