128002661767354 has 16 divisors (see below), whose sum is σ = 209471293500480. Its totient is φ = 58179585735360.

The previous prime is 128002661767327. The next prime is 128002661767381. The reversal of 128002661767354 is 453767166200821.

It is an interprime number because it is at equal distance from previous prime (128002661767327) and next prime (128002661767381).

It is a super-2 number, since 2×128002661767354² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171736719 + ... + 172480450.

It is an arithmetic number, because the mean of its divisors is an integer number (13091955843780).

Almost surely, 2^{128002661767354} is an apocalyptic number.

128002661767354 is a deficient number, since it is larger than the sum of its proper divisors (81468631733126).

128002661767354 is a wasteful number, since it uses less digits than its factorization.

128002661767354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344234085.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 128002661767354 in words is "one hundred twenty-eight trillion, two billion, six hundred sixty-one million, seven hundred sixty-seven thousand, three hundred fifty-four".