7001642221158 has 64 divisors (see below), whose sum is σ = 15107247896832. Its totient is φ = 2150526568320.

The previous prime is 7001642221151. The next prime is 7001642221201. The reversal of 7001642221158 is 8511222461007.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7001642221151) 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, 194888985 + ... + 194924907.

It is an arithmetic number, because the mean of its divisors is an integer number (236050748388).

Almost surely, 2^{7001642221158} is an apocalyptic number.

7001642221158 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

7001642221158 is an abundant number, since it is smaller than the sum of its proper divisors (8105605675674).

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

7001642221158 is a wasteful number, since it uses less digits than its factorization.

7001642221158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40309.

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 7001642221158 in words is "seven trillion, one billion, six hundred forty-two million, two hundred twenty-one thousand, one hundred fifty-eight".