67006157064 has 128 divisors (see below), whose sum is σ = 208936627200. Its totient is φ = 17397008640.

The previous prime is 67006157063. The next prime is 67006157077. The reversal of 67006157064 is 46075160076.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (67006157063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5606407 + ... + 5618345.

It is an arithmetic number, because the mean of its divisors is an integer number (1632317400).

Almost surely, 2^67006157064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67006157064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104468313600).

67006157064 is an abundant number, since it is smaller than the sum of its proper divisors (141930470136).

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

67006157064 is a wasteful number, since it uses less digits than its factorization.

67006157064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15003 (or 14999 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 67006157064 in words is "sixty-seven billion, six million, one hundred fifty-seven thousand, sixty-four".