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70061715248640 = 293533133738171
BaseRepresentation
bin11111110111000100000111…
…01001100101011000000000
3100012001211112101202020100020
433323202003221211120000
533140342343100424030
6405001524015253440
720520535421422443
oct1773420351453000
9305054471666306
1070061715248640
1120362008830945
127a3651a81a280
133012a3991bccb
14134301004d65a
158176ecb10510
hex3fb883a65600

70061715248640 has 320 divisors, whose sum is σ = 224749324622592. Its totient is φ = 18618878361600.

The previous prime is 70061715248621. The next prime is 70061715248663. The reversal of 70061715248640 is 4684251716007.

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8574431755 + ... + 8574439925.

Almost surely, 270061715248640 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 70061715248640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112374662311296).

70061715248640 is an abundant number, since it is smaller than the sum of its proper divisors (154687609373952).

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

70061715248640 is a wasteful number, since it uses less digits than its factorization.

70061715248640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11901 (or 11885 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 70061715248640 in words is "seventy trillion, sixty-one billion, seven hundred fifteen million, two hundred forty-eight thousand, six hundred forty".