67061020 has 48 divisors (see below), whose sum is σ = 155782368. Its totient is φ = 24088320.

The previous prime is 67061017. The next prime is 67061023. The reversal of 67061020 is 2016076.

It is an interprime number because it is at equal distance from previous prime (67061017) and next prime (67061023).

It is a junction number, because it is equal to n+sod(n) for n = 67060982 and 67061000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67061023) 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, 6135 + ... + 13105.

It is an arithmetic number, because the mean of its divisors is an integer number (3245466).

Almost surely, 2^67061020 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 67061020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77891184).

67061020 is an abundant number, since it is smaller than the sum of its proper divisors (88721348).

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

67061020 is a wasteful number, since it uses less digits than its factorization.

67061020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7030 (or 7028 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 67061020 is about 8189.0793133294. The cubic root of 67061020 is about 406.2780739573.

Adding to 67061020 its reverse (2016076), we get a palindrome (69077096).

The spelling of 67061020 in words is "sixty-seven million, sixty-one thousand, twenty".