61001002002 has 32 divisors (see below), whose sum is σ = 123335136000. Its totient is φ = 20112622208.

The previous prime is 61001002001. The next prime is 61001002019. The reversal of 61001002002 is 20020010016.

61001002002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61001002002² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61001002001) 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, 70918 + ... + 356414.

It is an arithmetic number, because the mean of its divisors is an integer number (3854223000).

Almost surely, 2^61001002002 is an apocalyptic number.

61001002002 is an abundant number, since it is smaller than the sum of its proper divisors (62334133998).

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

61001002002 is a wasteful number, since it uses less digits than its factorization.

61001002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285890.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 61001002002 its reverse (20020010016), we get a palindrome (81021012018).

The spelling of 61001002002 in words is "sixty-one billion, one million, two thousand, two".