67151020 has 48 divisors (see below), whose sum is σ = 150026688. Its totient is φ = 25159680.

The previous prime is 67151017. The next prime is 67151023. The reversal of 67151020 is 2015176.

It is an interprime number because it is at equal distance from previous prime (67151017) and next prime (67151023).

It is a junction number, because it is equal to n+sod(n) for n = 67150982 and 67151000.

It is not an unprimeable number, because it can be changed into a prime (67151023) 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, 106105 + ... + 106735.

It is an arithmetic number, because the mean of its divisors is an integer number (3125556).

Almost surely, 2^67151020 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 67151020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75013344).

67151020 is an abundant number, since it is smaller than the sum of its proper divisors (82875668).

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

67151020 is a wasteful number, since it uses less digits than its factorization.

67151020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 67151020 is about 8194.5725941015. The cubic root of 67151020 is about 406.4597427387.

Adding to 67151020 its reverse (2015176), we get a palindrome (69166196).

The spelling of 67151020 in words is "sixty-seven million, one hundred fifty-one thousand, twenty".